Don’t complain about the snow on your neighbor’s roof when your own doorstep is unclean.

The wise men of antiquity, when they wished to make the whole world peaceful and happy, first put their own States into proper order. Before putting their States into proper order, they regulated their own families. Before regulating their families, they regulated themselves. Before regulating themselves, they tried to be sincere in their thoughts. Before being sincere in their thoughts, they tried to see things exactly as they really were.

Listen widely to remove your doubts and be careful when speaking about the rest and your mistakes will be few.

Ability will never catch up with the demand for it.

Know what you know and know that you don't know what you don't know — that is the characteristic of one who knows.

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

A gentleman wishes to be slow to speak and quick to act.