A joker is a little fool who is different from everyone else. He's not a club, diamond, heart, or spade. He's not an eight or a nine, a king or a jack. He is an outsider. He is placed in the same pack as the other cards, but he doesn't belong there. Therefore, he can be removed without anybody missing him.

The most subversive people are those who ask questions.

Socrates, whose mother was a midwife, used to say that his art was like the art of the midwife. She does not herself give birth to the child, but she is there to help during its delivery. Similarly, Socrates saw his task as helping people to 'give birth' to correct insight, since real understanding must come from within. . . . Everybody can grasp philosophical truths if they just use their innate reason.

Dear Hilde, if the human brain was simple enough for us to understand, we would still be so stupid that we couldn't understand it. Love, Dad.

Maybe we can comprehend a flower or an insect, but we can never comprehend ourselves. Even less can we expect to comprehend the universe.

We can be hindered in our development and our personal growth by political conditions. Outer circumstances can constrain us. Only when we are free to develop our innate abilities can we live as free beings. But we are just as much determined by inner potential and outer opportunities as the Stone Age boy on the Rhine, the lion in Africa, or the apple tree in the garden.

When you realize there is something you don't understand, then you're generally on the right path to understanding all kinds of things.