Haughtiness lives under the same roof with solitude.

Arguments derived from probabilities are idle.

Avoid compulsion and let early education be a matter of amusement. Young children learn by games; compulsory education cannot remain in the soul.

Philosophy is the highest music.

He who is learning and learning and doesn't apply what he knows is like the one who is plowing and plowing and doesn't seed.

To the rulers of the state then, if to any, it belongs of right to use falsehood, to deceive either enemies or their own citizens, for the good of the state: and no one else may meddle with this privilege.

There is no such thing as a lovers' oath.