Would I lay down my life to save my brother? No, but I would to save two brothers or eight cousins.

This is my prediction for the future: Whatever hasn't happened will happen, and no one will be safe from it.

Man armed with science is like a baby with a box of matches.

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.

The idea of protoplasm, which was really a name for our ignorance, [is] only a little less misleading than the expression "Vital force".

A fairly bright boy is far more intelligent and far better company than the average adult.

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.