Kindliness, friendliness, the courtesy of the heart, are ever-flowing streams of non egoistic impulses, and have given far more powerful assistance to culture than even those much more famous demonstrations which are called pity, mercy, and self-sacrifice.

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

Let old ones go. Dont be a memory-monger! Once you were young──now you are even younger.

Every attainment, every step forward in knowledge, follows from courage, from hardness against oneself, from cleanliness in relation to oneself.

I feel all those human beings to be pernicious who can no longer oppose what they love: they thereby ruin the best things and people.

To recognize untruth as a condition of life--that certainly means resisting accustomed value feelings in a dangerous way; and a philosophy that risks this would by that token alone place itself beyond good and evil.

All religions bear traces of the fact that they arose during the intellectual immaturity of the human race - before it had learned the obligations to speak the truth. Not one of them makes it the duty of its god to be truthful and understandable in his communications.