If language is not rectified, words do not correspond to meaning, and if words do not correspond to meaning, our deeds cannot be accomplished.

If you know, say you know. If you don't know, say you don't know.

Listen widely to remove your doubts and be careful when speaking about the rest and your mistakes will be few. See much and get rid of what is dangerous and be careful in acting on the rest and your causes for regret will be few. Speaking without fault, acting without causing regret: 'upgrading' consists in this.

In speaking, it is best to be clear and say just enough to convey the meaning.

Coarse rice to eat, water to drink, my bended arm for a pillow - therein is happiness. Wealth and rank attained through immoral means are nothing but drifting clouds.

To study and at times practice what one has learned, is this not a pleasure?

If you make a mistake and do not correct it, this is called a mistake.