Fools call wise men fools. A wise man never calls any man a fool.

The man who is truly wise knows that he knows very little.

The tongue of a fool is the key of his counsel, which, in a wise man, wisdom hath in keeping.

Wonder is the beginning of wisdom.

You can't be wise and in love at the same time.

A wise man should not divulge the formula of a medicine which he has well prepared; an act of charity which he has performed; domestic conflicts; private affairs with his wife; poorly prepared food he may have been offered; or slang he may have heard.