We only hear questions that we are able to answer.

Just as soon as we notice that someone has to force himself to pay attention when dealing and talking with us, we have a valid demonstration that he does not love us or that he does not love us anymore.

Existence begins in every instant.

One who has a why can endure anyhow.

He who has always spared himself much will in the end become sickly of so much consideration. Praised be what hardens!

What, if some day or night a demon were to steal after you into your loneliest loneliness and say to you: 'This life as you now live it and have lived it, you will have to live once more and innumerable times more' ... Would you not throw yourself down and gnash your teeth and curse the demon who spoke thus? Or have you once experienced a tremendous moment when you would have answered him: 'You are a god and never have I heard anything more divine.

The deeper minds of all ages have had pity for animals.