I once saw a photograph of a large herd of wild elephants in Central Africa Seeing an airplane for the first time, and all in a state of wild collective terror... As, however, there were no journalists among them, the terror died down when the airplane was out of sight.

The whole problem with the world is that fools and fanatics are always so certain of themselves, and wiser people so full of doubts.

In the revolt against idealism, the ambiguities of the word experience have been perceived, with the result that realists have more and more avoided the word.

Why is propaganda so much more successful when it stirs up hatred than when it tries to stir up friendly feeling?

Organic life, we are told, has developed gradually from the protozoon to the philosopher, and this development, we are assured, is indubitably an advance. Unfortunately it is the philosopher, not the protozoon, who gives us this assurance.

When two great powers disagree about anything - it doesn't matter what - they must find a way to settle it somehow by arbitration or by negotiation, not by war or threat of war.

Man is the product of causes which had no prevision of the end they were achieving; his origin, his growth, his hopes and fears, his loves and beliefs, are but the outcome of accidental collocations of atoms; no fire, no heroism, no intensity of though and feeling, can preserve an individual life beyond the grave.