True Speech: Why Practitioners Must Not Lie?

Through a dharma talk by Venerable Thích Chân Quang, we come to understand why true speech is the foundation of meditative concentration, and how lying brings about ruin.
In his talk on true speech, Teacher Chân Quang tells the story of the old fox from the scriptures: he was once a monk during the time of Buddha Kāśyapa. One day, someone asked whether a person who had attained realization was still governed by cause and effect (karmic law), and he answered "no." With just that one wrong statement, he fell into the body of a fox for five hundred lifetimes. Only when he met Master Bá Trượng, who taught him that "one who has truly attained realization no longer errs regarding cause and effect (karmic law)," did he awaken greatly and escape the fox's body. This story made me wonder: how powerful, and how dangerous, can truthful speech truly be?
**Why is lying such a grave offense?**
In Buddhism, lying is one of the fundamental precepts. But Teacher Chân Quang points out that not all lies carry the same weight. Some lies are told for personal gain at others' expense, but the gravest kind is falsely claiming to have attained realization — an offense belonging to the "four grave precepts" of a bhikkhu, one that cannot be resolved through repentance and leads to the hell realms.
"If one has not truly attained realization yet claims to have attained it, then people will come and rely on you to learn. When you speak so recklessly, there are truths that are very profound, but you explain them very shallowly, or you explain them wrongly, bringing confusion to those who learn from you. The consequences are beyond measure."
Teacher Chân Quang then analyzes the cause that leads someone to claim attainment: it is the craving for fame and gain, the desire to be revered by others without the effort of genuine practice.
**Truth has a strange power**
Teacher Chân Quang recalls the words of Abraham Lincoln: "You can fool a person some of the time, you can fool all people some of the time, but you cannot fool all people all of the time." For this reason, there are great figures like George Washington who are recorded as never having told a lie in their entire lives. Truth always reveals itself, and the liar must ultimately bear the loss of trust.
"Once trust is broken in one matter, trust is lost in ten thousand matters. It means that once your credibility is gone in one thing, people will no longer believe you in a thousand things."
Therefore, living truthfully is not only pure morality, but also a way of building trust and inner strength. A truthful person finds it easy to be trusted in everything they do.
**A truthful person dares to face their own faults**
The teacher gives a very ordinary example: when the rice does not cook well, instead of admitting we lack cooking skill, we blame the firewood, the water, or the rice. That is a way of defending ourselves. A truthful person does not do this. They dare to admit their own faults.
"A truthful person is someone who dares to look straight at the truth. They are objective, they seek the truth, and so they dare to admit their own mistakes."
When we feel anger toward someone, a truthful person will say "I am experiencing hatred," and from there can move beyond it. An untruthful person will make excuses, saying "they were being impossible." Only by daring to look directly at our own mind/heart can we gain control over it.
The teacher also points out: "A person who often lies cannot enter meditative concentration." This is because a concentrated mind requires purity; a mind that must constantly fabricate and imagine things that do not exist will give rise to endless wandering thoughts.
**Truthfulness and goodness go hand in hand**
If a practitioner examines good and evil in everything they do, there is nothing to hide. The teacher gives an example: when feeling lazy or tempted to buy a lottery ticket, a practitioner should refuse immediately, because otherwise they will feel anxious and restless, sleep poorly, and precisely because of this, they will have to lie. A truthful person does what is right and what is good, and so has no need for deceit. Conversely, there was a nun in a temple who, wanting to set aside a larger share for those who arrived later, said there were thirty-five people when there were actually thirty-two. Though her intention was good, once others discovered it, she was no longer trusted when giving teachings.
"Some people are so enthusiastic that they lie out of enthusiasm, but this should not be done. When you venerable ones teach the Buddhist followers, remember this. Often, do not lie for the sake of some small benefit; accept the disadvantage in order to preserve your credibility, to preserve truthfulness, to preserve the true conduct of a practitioner."
Finally, the teacher reminds us: "The Buddha taught that there are four kinds of truthful speech and false speech." As practitioners, we must discern them clearly so as not to harm others. But what matters most is living in accordance with the reality of our own mind/heart.
True speech is not merely refraining from lying; it is living in peace and clarity. When you live truthfully, your mind/heart becomes light, with no need to remember your lies or fear being exposed. You can enter meditative concentration more easily, and life becomes serene. Begin with the smallest things: speak the truth, admit your mistakes, and have the courage to live as your true self. That is the foundation of all virtuous conduct.
AI-assisted translation from the Vietnamese original.
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