Be faithful and true of word; let thy walk be plain and lowly: thou wilt get on, though in savage land. If thy words be not faithful and true, thy walk plain and lowly, wilt thou get on, though in thine own home? Standing, see these words ranged before thee; driving, see them written upon the yoke. Then thou wilt get on.
He who learns but does not think, is lost! He who thinks but does not learn is in great danger... Men of superior mind busy themselves first getting at the root of things; when they succeed, the right course is open to them.
By three methods we may learn wisdom: First, by reflection, which is noblest; Second, by imitation, which is easiest; and third by experience, which is the bitterest.
The Master said of Gong Yechang, “He is marriageable. Although he was once imprisoned and branded as a criminal, he was in fact innocent of any crime.” The Master gave him his daughter in marriage. (Analects 5.1)
These are the four abuses: desire to succeed in order to make oneself famous; taking credit for the labors of others; refusal to correct one's errors despite advice; refusal to change one's ideas despite warnings.