Fèi Fǔ Zhī Yán: 肺腑之言 - Sincere Words from the Depths of One's Heart

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• Summary: 肺腑之言 (fèi fǔ zhī yán) is a powerful four-character Chinese idiom literally translating to “words from one's lungs and internal organs,” meaning heartfelt, sincere words spoken from the very depths of one's being. Unlike casual conversation, 肺腑之言 represents the highest level of emotional honesty in Chinese communication—a speaker literally opens their chest to share their true feelings. This guide explores the historical origins, modern applications, business etiquette, and cultural weight of this profound expression, providing 10+ practical examples and clarifying the critical differences between 肺腑之言 and similar terms. Whether you're navigating Chinese workplace dynamics, building relationships, or seeking to understand the hidden emotional codes of Chinese society, mastering 肺腑之言 unlocks a deeper layer of authentic communication that most learners never discover.

Core Information:

• Pinyin: fèi fǔ zhī yán
• Pronunciation Audio Description: “fèi” (fourth tone, falling sharply), “fǔ” (third tone, dipping then rising), “zhī” (first tone, flat), “yán” (second tone, rising)
• Part of Speech: Noun phrase, functioning as an idiomatic expression (成语)
• HSK Level: HSK 5-6 (intermediate to advanced vocabulary)
• Traditional Characters: 肺腑之言
• Simplified Characters: 肺腑之言 (same in simplified)
• Concise Definition: Heartfelt words; sincere advice; honest words spoken from the depths of one's inner being

The “In a Nutshell” Concept:

Imagine someone reaching into their chest, pulling out their literal lungs and organs, and presenting them to you as proof of their sincerity. That's the visceral imagery behind 肺腑之言. This isn't polite small talk or diplomatic hedging—it's the Chinese equivalent of someone laying their heart completely bare, stripping away all social pretense to reveal their most vulnerable, honest self.

In Chinese culture, where “saving face” (面子) dominates social interactions and direct emotional expression is traditionally discouraged, 肺腑之言 carries extraordinary weight. When someone says “这是我的肺腑之言,” they're essentially saying: “I'm setting aside every social mask I normally wear. What follows comes from the most authentic part of me.”

The term operates on multiple emotional frequencies simultaneously. It conveys trust (I'm sharing something vulnerable with you), gravity (this matters deeply to me), and vulnerability (I'm exposing my true feelings without protection). Understanding this emotional tri-force is essential for anyone seeking genuine connection in Chinese contexts.

Evolution & Etymology:

The anatomical metaphor at the heart of 肺腑之言 traces its roots to ancient Chinese medical philosophy and cosmology. In traditional Chinese medicine (TCM), the 脏腑 (zàng fǔ) system—comprising the five zang organs (heart, liver, spleen, lungs, kidneys) and six fu organs (stomach, large intestine, small intestine, bladder, gallbladder, sanjiao)—was believed to house not just physiological functions but emotional and spiritual essences.

The concept appears in classical texts as early as the Warring States period (475-221 BCE). The term 肺腑 specifically denotes the deep, interior organs—the most vital, protected parts of the body—distinguishing them from surface-level physical attributes. Ancient Chinese philosophers viewed these inner organs as repositories of one's truest nature, moral character, and emotional truth.

Historical texts show the phrase evolving through several stages:

Pre-Qin Period (Before 221 BCE): References to 肺腑 appear in medical and philosophical contexts, describing the innermost vital organs. Philosophers like Mencius used organ-based metaphors to discuss moral cultivation, suggesting that genuine virtue must penetrate to one's deepest being.

Han Dynasty (206 BCE - 220 CE): The compound 肺腑 begins appearing in texts with extended metaphorical meaning. Han scholars used it to describe innermost thoughts, loyal ministers (those who served from their “innermost”), and sincere intentions.

Tang-Song Period (618-1279 CE): The full phrase 肺腑之言 emerges in literary contexts. Poets and essayists used it to describe heartfelt confessions in poetry, letters between scholars, and emotional appeals in political discourse. The phrase gained connotations of vulnerability, courage, and moral conviction.

Ming-Qing Period (1368-1912): The idiom became standard in formal writing, appearing in official documents, personal correspondence, and fiction. It retained associations with political sincerity—officials addressing emperors, teachers advising students, elders guiding the young.

Modern Era (1912-Present): 肺腑之言 has remained remarkably stable in core meaning while adapting to contemporary contexts. Today it appears in:

• Business negotiations where genuine commitment needs signaling
• Family conversations during significant life decisions
• Mentor-student relationships in academic settings
• Political and social commentary where authenticity is emphasized
• Interpersonal relationships where trust-building is crucial
• Literary and media contexts requiring emotional emphasis

The term has resisted the erosion that has affected many traditional idioms in the digital age, possibly because it fills such a specific, irreplaceable communicative function: marking extreme sincerity in a culture where extreme sincerity is rare and therefore valuable.

Understanding 肺腑之言 requires distinguishing it from several semantically adjacent terms. The following table maps the critical differentiators:

Critical Distinctions:

肺腑之言 vs 真心话: The difference lies in depth and gravity. 真心话 simply means “true words”—you might share your honest opinion about a restaurant. 肺腑之言 implies such profound sincerity that it requires physical imagery of exposing your vital organs. 真心话 can be casual; 肺腑之言 never is.

肺腑之言 vs 由衷之言: These are functionally near-synonyms in modern usage, with 由衷之言 being slightly more formal and literary. Both emphasize words arising from genuine inner feeling. The choice between them often depends on register: 由衷之言 appears more often in written and formal speech; 肺腑之言 has slightly more colloquial flexibility while remaining respectful.

肺腑之言 vs 掏心窝子话: The latter is the vulgar, emotionally intense cousin. 掏心窝子话 is what you say at 2 AM after several drinks when you finally tell your best friend about your deepest fears. It's warm, intimate, and slightly raw. 肺腑之言 retains dignity—it's sincere without being messy.

Where It Works:

The Workplace: In professional contexts, 肺腑之言 serves as a powerful signal of authentic investment. It appears most often in:

• Performance reviews where managers offer genuine developmental feedback rather than bureaucratic evaluation
• Exit interviews where departing employees share honest assessments without fear of retaliation
• Leadership speeches during crisis moments requiring trust restoration
• Mentor relationships where experienced professionals offer career guidance

Example: A department head might say, “我跟你们说句肺腑之言，这次的决策确实有争议，但我相信这是对公司长期发展最负责任的选择。” (I'm going to share something from the depths of my heart—the decision this time was indeed controversial, but I believe it's the most responsible choice for the company's long-term development.)

Romantic Relationships: In dating and marriage contexts, 肺腑之言 marks significant emotional milestones:

• Confessing fundamental relationship fears or aspirations
• Apologizing after serious conflicts when genuine remorse needs signaling
• Discussing marriage proposals or serious commitment
• Expressing vulnerability about past experiences affecting the relationship

Example: “我从来没跟别人说过这些，今天对你说肺腑之言，是因为我真的把你当作我最重要的人。” (I've never told anyone these things before. Sharing these heartfelt words with you today is because I truly consider you the most important person in my life.)

Family Dynamics: Within Chinese family structures, hierarchy traditionally constrains emotional expression. 肺腑之言 provides a culturally sanctioned framework for breaking through:

• Parents discussing fundamental values with adult children
• Adult children expressing gratitude or regret to aging parents
• During health crises or family emergencies requiring honest discussion

Social Media & Gen-Z Usage:

The digital generation has developed complex relationships with traditional idioms. 肺腑之言 appears in several distinct digital patterns:

Genuine Usage: Still used sincerely in personal blogs, Weibo posts about meaningful life experiences, and video content where creators share vulnerable stories.

Ironic Subversion: Gen-Z sometimes uses 肺腑之言 ironically to mark obvious or performative sincerity. “说句肺腑之言” followed by something mildly controversial creates humorous tension between the gravity of the phrase and the casual content.

Meme Context: The phrase appears in screenshot culture, often with images of people dramatically clutching their chests or pointing finger-guns, playing on the literal organ imagery for comedic effect.

Sarcastic Deployment: In online arguments, someone might say “我说肺腑之言你别生气” (I'm sharing something from my heart, don't get angry) before delivering harsh criticism, using the phrase as a “warning label” for incoming honesty.

The “Hidden Codes”:

Understanding the unwritten rules around 肺腑之言 reveals much about Chinese communication norms:

The Reciprocity Expectation: When someone shares 肺腑之言 with you, social convention creates strong pressure to respond in kind. Not reciprocating with equivalent vulnerability can be perceived as rejection of the offered trust, even if you respond politely.

The Refusal Script: If someone shares 肺腑之言 and you cannot reciprocate (perhaps because you disagree with their position), the polite refusal typically involves acknowledging the sincerity (“你的心意我理解” or “我知道你是真心实意”) while gently explaining why you cannot share their perspective—not rejecting their honesty, just your own separate position.

The Sincerity Insurance: Speakers sometimes preemptively claim 肺腑之言 status to preemptively disarm potential disagreement. “我说肺腑之言，你别往心里去” uses the phrase to frame subsequent criticism as well-intentioned, attempting to prevent the normal relationship damage that direct feedback might cause.

The Relationship Test: Sharing 肺腑之言 is sometimes used as an implicit relationship milestone—those who exchange genuine 肺腑之言 are acknowledging a level of intimacy that transcends ordinary friendship or professional connection.

Power Dynamic Warning: In hierarchical contexts, a subordinate sharing 肺腑之言 with a superior carries risk. The vulnerability required might be perceived as inappropriate intimacy, naivety, or even manipulative attempt to leverage emotional connection for advantage. Middle managers navigating between their bosses and teams must be especially careful with this term.

Where It Fails:

Superficial Contexts: Using 肺腑之言 for trivial matters (e.g., “我对这家奶茶店说句肺腑之言，真的太好喝了！”) sounds absurdly overblown. The phrase carries inherent gravity that cannot be detached—using it for mundane topics creates comedic dissonance.

With Strangers: The vulnerability required by 肺腑之言 makes it inappropriate with people you don't know well. Sharing it prematurely violates social intimacy progression expectations.

Written Formal Documents: While 由衷之言 appears in formal writing, 肺腑之言 feels slightly too colloquial for highly formal documents (legal contracts, official government statements). Save it for speech or semi-formal writing.

After Minor Disagreements: If you use 肺腑之言 to express mild preferences or settle trivial disputes, you'll sound like you're catastrophizing. The phrase should match genuine emotional stakes.

Example 1:

• Chinese: 我说句肺腑之言，你不适合这个职位，不是因为你的能力，而是因为你的职业规划和这个岗位的发展方向不一致。
• Pinyin: Wǒ shuō jù fèi fǔ zhī yán, nǐ bù shìhé zhège zhíwèi, bù shì yīnwèi nǐ de nénglì, érshì yīnwèi nǐ de zhíyè guīhuà hé zhège gǎngwèi de fāzhǎn fāngxiàng bù yīzhì.
• English: I'm going to share something from my heart—you're not suitable for this position, not because of your ability, but because your career plan doesn't align with this role's development direction.
• Deep Analysis: This example demonstrates 肺腑之言's use in difficult feedback scenarios. The speaker uses the phrase to signal that despite delivering unwelcome news, their intention is genuinely helpful rather than malicious. The phrase creates a protective frame around potentially face-threatening criticism, signaling: “I'm exposing my honest assessment despite knowing it might harm our relationship, because I genuinely care about your wellbeing.”

Example 2:

• Chinese: 老师对学生说：“你们是我带过的第三届学生，我跟你们说句肺腑之言，高中三年可能觉得痛苦，但这将是你们人生中最纯粹的时光。”
• Pinyin: Lǎoshī duì xuésheng shuō: “Nǐmen shì wǒ dàiguò de dì sān jiè xuésheng, wǒ gēn nǐmen shuō jù fèi fǔ zhī yán, gāozhōng sān nián kěnéng juéde tòngkǔ, dàn zhè jiāng shì nǐmen rénshēng zhōng zuì chúncuì de shíguāng.”
• English: The teacher told the students: “You're the third cohort of students I've taught. Let me share something from the depths of my heart—these three years of high school may feel painful, but this will be the purest time of your lives.”
• Deep Analysis: In educational contexts, 肺腑之言 marks wisdom transmission moments when an experienced person shares hard-won life insights. The phrase elevates the advice from ordinary guidance to moral testament. The teacher is saying: “I'm not just performing my job duty; I'm sharing something that has taken me decades to understand.”

Example 3:

• Chinese: 父亲在儿子婚礼上说：“我跟你妈风风雨雨三十年，说句肺腑之言，婚姻需要经营，不是一时的浪漫，而是每天的选择。”
• Pinyin: Fùqīn zài érzi hūnlǐ shàng shuō: “Wǒ gēn nǐ mā fēng fēng yǔ yǔ sānshí nián, shuō jù fèi fǔ zhī yán, hūnyīn xūyào jīngyíng, bùshì yīshí de làngmàn, érshì měitiān de xuǎnzé.”
• English: The father said at his son's wedding: “Your mother and I have been together through ups and downs for thirty years. Let me share something from my heart—marriage requires effort, it's not momentary romance, but daily choices.”
• Deep Analysis: Family ceremonies create permission structures for 肺腑之言 deployment. The father draws on marriage experience as moral authority. The phrase signals: “I'm not speaking theoretically; these are lessons I know from living them.” This transforms a potentially preachy speech into a gift of hard-won wisdom.

Example 4:

• Chinese: 在公司年会上，CEO说：“跟大家说句肺腑之言，去年确实很难，但我相信只要我们团结，没有克服不了的困难。”
• Pinyin: Zài gōngsī niánhuì shàng, CEO shuō: “Gēn dàjiā shuō jù fèi fǔ zhī yán, qùnián quèshí hěn nán, dàn wǒ xiāngxìn zhǐyào wǒmen tuánjié, méiyǒu kèfú bùliǎo de kùnnán.”
• English: At the company annual meeting, the CEO said: “Let me share something from my heart with everyone—last year was indeed difficult, but I believe as long as we stay united, there's no difficulty we can't overcome.”
• Deep Analysis: In leadership contexts, 肺腑之言 serves as authenticity signaling during crisis communication. The phrase acknowledges shared hardship (“去年确实很难”) before pivoting to inspirational messaging. This honest acknowledgment paradoxically strengthens credibility for the optimistic conclusion that follows.

Example 5:

• Chinese: “我跟你说肺腑之言，当初创业的时候，最难的不是缺钱，是没有人相信我能做到。”
• Pinyin: “Wǒ gēn nǐ shuō fèi fǔ zhī yán, dāngchū chuàngyè de shíhou, zuì nán de bùshì quē qián, shì méiyǒu rén xiāngxìn wǒ néng zuòdào.”
• English: “I'm telling you something from the depths of my heart—when I first started my business, the hardest part wasn't lacking money, it was no one believing I could do it.”
• Deep Analysis: In personal storytelling, 肺腑之言 frames vulnerability as strength. The speaker reveals past vulnerability (doubt from others) while showcasing current success, creating motivational narrative arc. The phrase acts as a warning: “What follows is painful truth I'm exposing, not comfortable humble-brag.”

Example 6:

• Chinese: 朋友在聚会上说：“你们可能觉得我每天都很开心，但说句肺腑之言，我其实一直在和焦虑症作斗争。”
• Pinyin: Péngyǒu zài jùhuì shàng shuō: “Nǐmen kěnéng juéde wǒ měitiān dōu hěn kāixīn, dàn shuō jù fèi fǔ zhī yán, wǒ qíshí yīzhí zài hé jiāolǜzhèng zuò zhēngdòu.”
• English: A friend at a gathering said: “You might think I'm happy every day, but let me be completely honest—I've actually been struggling with anxiety this whole time.”
• Deep Analysis: This example shows 肺腑之言 used for mental health disclosure. The phrase marks a significant break from social persona maintenance. The speaker explicitly contrasts surface appearance (“觉得我很开心”) with internal reality (“和焦虑症斗争”), using 肺腑之言 to sanction this revelation within the social context.

Example 7:

• Chinese: 求职面试官说：“我跟你说句肺腑之言，这个岗位压力很大，加班是常态，我希望你能慎重考虑。”
• Pinyin: Qiúzhí miànshì guānyuán shuō: “Wǒ gēn nǐ shuō jù fèi fǔ zhī yán, zhège gǎngwèi yālì hěn dà, jiābān shì chángtài, wǒ xīwàng nǐ néng shènzhòng kǎolǜ.”
• English: The job interviewer said: “Let me be completely candid with you—this position has significant pressure, overtime is the norm, and I hope you can seriously consider whether this is right for you.”
• Deep Analysis: In professional settings, 肺腑之言 sometimes functions as ethical warning. The interviewer uses the phrase to signal they're providing realistic information beyond typical positive recruitment spin. This apparent disadvantage actually builds trust by showing the interviewer values candidate fit over just filling the position.

Example 8:

• Chinese: “妈妈跟你说肺腑之言，不管你将来做什么选择，妈妈都支持你，只要你快乐就好。”
• Pinyin: “Māmā gēn nǐ shuō fèi fǔ zhī yán, bùguǎn nǐ jiānglái zuò shénme xuǎnzé, māmā dōu zhīchí nǐ, zhǐyào nǐ kuàilè jiù hǎo.”
• English: “Mom is sharing something from her heart with you—no matter what choice you make in the future, Mom will support you, as long as you're happy.”
• Deep Analysis: In parent-child relationships, 肺腑之言 often conveys unconditional support. The mother uses the phrase to elevate her statement from ordinary encouragement to fundamental commitment. This signals: “I'm not just saying supportive words; I'm revealing my deepest parental value—that your happiness matters more than any specific life path.”

Example 9:

• Chinese: 医生对病人家属说：“我跟你们说句肺腑之言，接下来的治疗会很艰难，但只要有信心，就有希望。”
• Pinyin: Yīshēng duì bìngrén jiāshǔ shuō: “Wǒ gēn nǐmen shuō jù fèi fǔ zhī yán, jiē xiàlái de zhìliáo huì hěn jiānnán, dàn zhǐyào yǒu xìnxīn, jiù yǒu xīwàng.”
• English: The doctor said to the patient's family: “Let me share something from my heart—the treatment ahead will be very difficult, but as long as we maintain confidence, there's hope.”
• Deep Analysis: In medical contexts, 肺腑之言 serves to balance honesty about difficult circumstances with maintained hope. The doctor acknowledges medical reality while using the phrase's sincerity connotations to strengthen the hopeful conclusion. This creates space for honest prognosis while preserving the emotional support function.

Example 10:

• Chinese: “我跟你认识这么多年，第一次跟你说肺腑之言——我一直觉得你是我们共同朋友里最有担当的人。”
• Pinyin: “Wǒ gēn nǐ rènshi zhème duō nián, dì yī cì gēn nǐ shuō fèi fǔ zhī yán——wǒ yīzhí juéde nǐ shì wǒmen gòngtóng péngyǒu lǐ zuì yǒu dāndāng de rén.”
• English: “We've known each other for so many years, and this is the first time I'm sharing something from my heart with you—I always thought you were the most responsible person among our mutual friends.”
• Deep Analysis: The phrase “第一次说肺腑之言” (first time saying heartfelt words) emphasizes the relationship milestone. This explicitly marks the conversation as unusually intimate, signaling that the speaker normally maintains reserve even with close friends, making this moment significant.

Example 11:

• Chinese: 退休老员工在公司送别会上说：“我临走前说句肺腑之言，公司的未来在你们手里，希望你们不要忘记初心。”
• Pinyin: Tuìxiū lǎo yuángōng zài gōngsī sòngbié huì shàng shuō: “Wǒ lín zǒu qián shuō jù fèi fǔ zhī yán, gōngsī de wèilái zài nǐmen shǒu lǐ, xīwàng nǐmen bùyào wàngjì chūxīn.”
• English: The retiring veteran employee said at the company's farewell gathering: “Before I leave, let me share something from my heart—the company's future is in your hands, and I hope you won't forget why you started.”
• Deep Analysis: Farewell speeches create natural permission structures for 肺腑之言 because departing individuals face fewer social costs for honesty. The phrase “临走前” (before leaving) explicitly marks this as final wisdom, transforming ordinary advice into moral testament.

Example 12:

• Chinese: “我给你说肺腑之言，你不应该为了面子而勉强自己，适合你的才是最好的。”
• Pinyin: “Wǒ gěi nǐ shuō fèi fǔ zhī yán, nǐ bù yīnggāi wèile miànzi ér miǎnqiǎng zìjǐ, shìhé nǐ de cái shì zuì hǎo de.”
• English: “I'm telling you something from the depths of my heart—you shouldn't force yourself for the sake of face. What suits you is what matters most.”
• Deep Analysis: This example shows 肺腑之言 used to challenge culturally dominant values (face-saving) by invoking deeper values (authenticity). The speaker positions their advice as transcending normal social expectations, coming from a more fundamental truth about the listener's wellbeing.

False Friends and Misleading Equivalents:

“Heartfelt” in English: While 肺腑之言 translates loosely as “heartfelt words,” the Chinese term carries far more gravity. English “heartfelt” can apply to thank-you notes, sympathy cards, or routine expressions of emotion. 肺腑之言 never applies to casual contexts. A learner using “肺腑之言” for everyday gratitude will sound melodramatic.

“Being Real” or “Keeping It Real”: These contemporary English slang expressions capture sincerity but lack the cultural weight and formal register of 肺腑之言. “Keeping it real” can even have subversive or provocative connotations—肺腑之言 has the opposite energy, emphasizing harmony and positive intention even in criticism.

“Speaking from the Heart”: This is the closest English approximation but remains weaker. The Chinese imagery of literally exposing your organs has no English equivalent—English speakers don't have the same visceral connection between internal organs and authentic self. Expect Chinese listeners to weight 肺腑之言 more heavily than English speakers would weight “speaking from the heart.”

Common Learner Mistakes:

Wrong Example 1:

• Incorrect: “这家火锅太好吃了，我跟你们说句肺腑之言！”
• Why It's Wrong: Using 肺腑之言 for food enthusiasm completely misaligns with the phrase's gravity. Chinese listeners will either laugh at the absurdity or suspect you're being sarcastic.
• Correct Alternative: “这家火锅太好吃了，我真的强烈推荐！” (This hotpot is so delicious, I really strongly recommend it!) Or for playful emphasis: “这家火锅绝了！” (This hotpot is amazing!)

Wrong Example 2:

• Incorrect: “我们是第一次见面，我跟你说句肺腑之言，我其实不太喜欢你。”
• Why It's Wrong: Sharing 肺腑之言 with a stranger violates social intimacy progression. The vulnerability required makes sense only within established relationships where trust already exists.
• Correct Alternative: In this situation, you shouldn't share such negative feedback at all. If absolutely necessary: “我觉得我们可能不太适合合作” (I think we might not be suitable for working together) without the 肺腑之言 framing.

Wrong Example 3:

• Incorrect: “老板，我想跟你说句肺腑之言，我觉得你今天穿的衣服不太好看。”
• Why It's Wrong: This violates multiple social rules: criticizing a superior's appearance, offering unsolicited negative evaluation, and using inappropriate intimacy in professional hierarchy.
• Correct Alternative: In Chinese professional culture, such feedback should never be given unless explicitly requested. If the employee were close personal friends with the boss outside work, they might say: “你平时穿衣风格都很有品味” (Your usual style is always very tasteful) without negative framing.

Wrong Example 4:

• Incorrect: “我说句肺腑之言，我觉得你的性格需要改变。”
• Why It's Wrong: While this shares vulnerability about the speaker's feelings, it frames them as prescribing change to the listener's fundamental personality, which sounds accusatory rather than supportive.
• Correct Alternative: “我说句肺腑之言，我有一些观察可能对你有帮助” (Let me share something from my heart—I have some observations that might be helpful to you) reframes the content as offered observation rather than demanded change.

Cultural Context Errors:

Ignoring Reciprocity Pressure: Learners often share 肺腑之言 without understanding they should prepare for the conversational debt created. After someone shares 肺腑之言 with you, you implicitly owe equivalent vulnerability in response or clear acknowledgment of the gift being offered.

Forgetting Face Protection: Even when deploying 肺腑之言 for criticism, the phrase doesn't eliminate the need for face-saving techniques. Effective use pairs 肺腑之言 sincerity with face-protecting framing: acknowledge positive intentions first, use indirect language patterns, and offer “out” interpretations the listener can accept without shame.

Assuming Equality of Sincerity: In English, claiming to speak sincerely (“to be honest with you…”) doesn't necessarily signal anything special. In Chinese, claiming 肺腑之言 carries genuine weight and creates speaker obligation to match the stated sincerity. Don't use the phrase unless you're genuinely committing to the vulnerability it implies.

The “Power Distance” Blind Spot: Learners from low-power-distance cultures (Nordic countries, Australia, etc.) may assume 肺腑之言 can flow in any direction. In high-power-distance Chinese contexts, subordinates sharing 肺腑之言 with superiors requires careful calibration—too much intimacy seems presumptuous; the phrase works better when superiors share it with subordinates, creating permission for vulnerability at lower risk.

• 真心话 (zhēn xīn huà) - “True heart words”; genuine opinions without pretense, but lighter gravity than 肺腑之言
• 由衷之言 (yóu zhōng zhī yán) - “Words from sincere inner feeling”; formal literary synonym for 肺腑之言
• 坦诚相见 (tǎn chéng xiāng jiàn) - “Meeting with openness and honesty”; reciprocal vulnerability between parties
• 交心 (jiāo xīn) - “Exchanging hearts/minds”; the act of sharing innermost thoughts, the process that leads to 肺腑之言
• 知心话 (zhī xīn huà) - “Words of intimate understanding”; intimate sharing between close confidants
• 推心置腹 (tuī xīn zhì fù) - “To place one's heart in another's palm”; extreme trust and sincerity
• 开诚布公 (kāi chéng bù gōng) - “To open one's heart and lay out facts”; frank discussion with transparent intentions
• 肺腑 (fèi fǔ) - “Lungs and organs”; the standalone noun referring to innermost being, from which 肺腑之言 derives
• 言为心声 (yán wéi xīn shēng) - “Words are the voice of the heart”; proverb affirming that speech reveals inner truth
• 说心里话 (shuō xīn lǐ huà) - “To say what's in one's heart”; colloquial expression of sincere sharing