Wisdom is worried for being slow in its speech and expeditious in its actions.

Conscience is the inner voice which warns us that someone might be looking. Hear and you forget, see and you remember, do and you understand.

Study as though you cannot catch up to it, and as though you fear you are going to lose it.

Because the newer methods of treatment are good, it does not follow that the old ones were bad: for if our honorable and worshipful ancestors had not recovered from their ailments, you and I would not be here today.

To see and listen to the wicked is already the beginning of wickedness.

See a person's means ... Observe his motives. Examine that in which he rests. How can a person conceal his character?

For one word a man is often deemed to be wise, and for one word he is often deemed to be foolish. We should be careful indeed what we say.