Evolution does not make happiness its goal; it aims simply at evolution and nothing else.

Most of the time in married life is taken up by talk.

History teaches that a race of people is best preserved where the greater number hold one common spirit in consequence of the similarity of their accustomed and indisputable principles.

What? You seek something? You wish to multiply yourself tenfold, a hundredfold? You seek followers? Seek zeros!

This life as you now live it and have lived it, you will have to live once more and innumerable times more; and there will be nothing new in it, but every pain and every joy and every thought and sigh and everything unutterably small or great in your life will have to return to you, all in the same succession and sequence - even this spider and this moonlight between the trees, and even this moment and I myself. The eternal hourglass of existence is turned upside down again and again, and you with it, speck of dust!

Whoever reaches his ideal transcends it eo ipso.

To live alone one must be a beast or a god, says Aristotle. Leaving out the third case: one must be both - a philosopher.