Men create the gods after their own images.

All men, or most men, wish what is noble but choose what is profitable; and while it is noble to render a service not with an eye to receiving one in return, it is profitable to receive one. One ought therefore, if one can, to return the equivalent of services received, and to do so willingly; for one ought not to make a man one's friend if one is unwilling to return his favors.

Some believe it to be just friends wanting, as if to be healthy enough to wish health.

The young are permanently in a state resembling intoxication.

One cannot say of something that it is and that it is not in the same respect at the same time.

The difference between a learned man and an ignorant one is the same as that between a living man and a corpse.

A bad man can do a million times more harm than a beast.