Each man is capable of doing one thing well. If he attempts several, he will fail to achieve distinction in any.

We will be better men, braver and less idle, if we believe that one must search for the things one does not know, rather than if we believe that it is not possible to find out what we do not know and that we must not look for it.

Knowledge becomes evil if the aim be not virtuous.

Great parts produce great vices as well as virtues.

The more the pleasures of the body fade away, the greater to me is the pleasure and charm of conversation.

If a man neglects education, he walks lame to the end of his life.

O youth or young man, who fancy that you are neglected by the gods, know that if you become worse, you shall go to worse souls, or if better to the better... In every succession of life and death, you will do and suffer what like may fitly suffer at the hands of like. This is the justice of heaven.