Not to mend one's ways when one has erred is to err indeed.

If the people be led by laws, and uniformity sought to be given them by punishments, they will try to avoid the punishment, but have no sense of shame.

Who heeds not the future will find sorrow at hand

What the wise seek is in themselves

If I am walking with two other men, each of them will serve as my teacher. I will pick out the good points of the one and imitate them, and the bad points of the other and correct them in myself.

In language clarity is everything.

The great man is sparing in words but prodigal in deeds.