Intelligence is not to make no mistakes, but quickly to see how to make them good.

Go make yourself a plan And be a shining light. Then make yourself a second plan, For neither will come right.

In the dark times Will there also be singing? Yes, there will also be singing. About the dark times.

The human race tends to remember the abuses to which it has been subjected rather than the endearments. What's left of kisses? Wounds, however, leave scars.

Art and science work in quite different ways: agreed. But, bad as it may sound, I have to admit that I cannot get along as an artist without the use of one or two sciences. ... In my view, the great and complicated things that go on in the world cannot be adequately recognized by people who do not use every possible aid to understanding.

First the grub, then the morals.

Impact lies in the vicinity of mistakes.