In chess, as a purely intellectual game, where randomness is excluded, - for someone to play against himself is absurd ... It is as paradoxical, as attempting to jump over his own shadow.

It would be foolhardy to count on the conscience of the world.

One only makes books in order to keep in touch with one's fellows after one has ceased to breath, and thus to defend oneself against the inexorable fate of all that lives - transitoriness and oblivion.

For I regard memory not as a phenomenon preserving one thing and losing another merely by chance, but as a power that deliberately places events in order or wisely omits them. Everything we forget about our own lives was really condemned to oblivion by an inner instinct long ago.

Art knows no happier moment than the opportunity to show the symmetry of an extreme, during that moment of spheric harmony when the dissonance dissolves for the blink of an eye, dissolves into a blissful harmony, when the most extreme opposites, coming together from the greatest alienation, fleetingly touch with lips of the word and of love.

Nothing that has ever been thought and said with a clear mind and pure ethical strength is totally in vain; even if it comes froma weak hand and is imperfectly formed, it inspires the ethical spirit to constantly renewed creation.

But don't despise error. When touched by genius, when led by chance, the most superior truth can come into being from even the most foolish error. The important inventions which have been brought about in every realm of science from false hypotheses number in the hundreds, indeed in the thousands.