I do not think any reasonable person can doubt that in India, China and Japan, if the knowledge of birth control existed, the birthrate would fall very rapidly

When we look at a rock what we are seeing is not the rock, but the effect of the rock upon us.

Against my will, in the course of my travels, the belief that everything worth knowing was known at Cambridge gradually wore off. In this respect my travels were very useful to me.

Logic must no more admit a unicorn than zoology can.

The late F. W. H. Myers used to tell how he asked a man at a dinner table what he thought would happen to him when he died. The man tried to ignore the question, but, on being pressed, replied: "Oh well, I suppose I shall inherit eternal bliss, but I wish you wouldn't talk about such unpleasant subjects."

We love our habits more than our income, often more than our life.

Democracy is the process by which people choose the man who'll get the blame.