The earth has a skin and that skin has diseases; one of its diseases is called man.
Even truthfulness is but one means to knowledge, a ladder--but not the ladder.
Too long, the earth has been a madhouse!
Truths are illlusions which we have forgotten are illusions.
We should not talk about our friends: otherwise we will talk away the feeling of friendship.
The finest and healthiest thing about science is, as in the mountains, the brisk air blowing around in it.--The spiritually delicate (such as artists) shun and slander science owing to this air.