Money can buy a fine dog but it is kindness that makes him wag his tail.

I have never yet met a healthy person who worried very much about his health, or a really good person who worried much about his own soul.

Science is vastly more stimulating to the imagination than the classics.

Religion is still parasitic in the interstices of our knowledge which have not yet been filled. Like bed-bugs in the cracks of walls and furniture, miracles lurk in the lacunae of science. The scientist plasters up these cracks in our knowledge; the more militant Rationalist swats the bugs in the open. Both have their proper sphere and they should realize that they are allies.

In fact, words are well adapted for description and the arousing of emotion, but for many kinds of precise thought other symbols are much better.

We must learn not to take traditional morals too seriously. And it is just because even the least dogmatic of religions tends to associate itself with some kind of unalterable moral tradition, that there can be no truce between science and religion.

The advance of scientific knowledge does not seem to make either our universe or our inner life in it any less mysterious.