The science hangs like a gathering fog in a valley, a fog which begins nowhere and goes nowhere, an incidental, unmeaning inconvenience to passers-by.

Losing your way on a journey is unfortunate. But, losing your reason for the journey is a fate more cruel.

The study of Nature makes a man at last as remorseless as Nature.

And I have by me, for my comfort, two strange white flowers - shriveled now, and brown and flat and brittle - to witness that even when mind and strength had gone, gratitude and a mutual tenderness still lived on in the heart of men.

The world needs something stronger than any possible rebellion against its peace. In other words it needs a federal world government embodying a new conception of human life as one whole.

There is no remorse like a remorse of chess. It is a curse upon man. There is no happiness in chess.

'It is love and reason,' I said, 'fleeing from all this madness of war.'