Excess of liberty, whether it lies in state or individuals, seems only to pass into excess of slavery.

. . . Then anyone who leaves behind him a written manual, and likewise anyone who receives it, in the belief that such writing will be clear and certain, must be exceedingly simple-minded. . . .

Only those who do not seek power are qualified to hold it.

Love is born into every human being; it calls back the halves of our original nature together; it tries to make one out of two and heal the wound of human nature.

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.

As it is, lovers of inquiry must follow their beloved wherever it may lead.

The wise man will want to be ever with him who is better than himself.