A thinker sees his own actions as experiments and questions--as attempts to find out something. Success and failure are for him answers above all.

Seducing one's neighbor to a good opinion and then afterwards believing devoutly in this neighbor's opinion--who can match women in this clever ploy?

Every one being allowed to learn to read, ruineth in the long run not only writing but also thinking.

It was Christianity which first painted the devil on the worlds walls; It was Christianity which first brought sin into the world. Belief in the cure which it offered has now been shaken to it's deepest roots; but belief in the sickness which it taught and propagated continues to exists.

Socrates and Plato are right: whatever man does he always does well, that is, he does that which seems to him good (useful) according to the degree of his intellect, the particular standard of his reasonableness.

Oh great star! What would your happiness be if you did not have us to shine for?

I fear animals regard man as a creature of their own kind which has in a highly dangerous fashion lost its healthy animal reason - as the mad animal, as the laughing animal, as the weeping animal, as the unhappy animal.