Honours and increased income which began with the sales of my History of Western Philosophy gave me a feeling of freedom and assurance that let me expend all my energies upon what I wanted to do. I got through an immense amount of work and felt, in consequence, optimistic and full of zest. I suspected that I had too much emphasised, hitherto, the darker possibilities threatening mankind and that it was time to write a book in which the happier issues of current disputes were brought into relief. I called this book New Hopes for a Changing World and deliberately, wherever there were two possibilities, I emphasised that it might be the happier one which would be realised.
Source: The Autobiography of Bertrand Russell, v.3 chap. 1: Return to England, 1969
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