Knowledge is to certain extent a second existence.

If there is anything in the world that can really be called a man's property, it is surely that which is the result of his mental activity.

A man must have grown old and lived long in order to see how short life is.

No one can transcend their own individuality.

What people commonly call Fate is, as a general rule, nothing but their own stupid and foolish conduct.

For the purpose of acquiring gain, everything else is pushed aside or thrown overboard, for example, as is philosophy by the professors of philosophy.

We deceive and flatter no one by such delicate artificies as we do our own selves.