I should like to say that you have, through your knowledge, powers which humans have never had before. You can use these powers well or you can use them ill. You will use them well if you realize that humankind is all one family and that we can all be happy or we can all be miserable.

Bertrand Russell (1872-1970) English mathematician and philosopher

Interview by Woodrow Wyatt, BBC TV (1959)

Collected in Bertrand Russell's BBC Interviews (1959) [UK] and Bertrand Russell Speaks His Mind (1960) [US].