There comes a time when every scientist, even God, has to write off an experiment.

Perhaps it's only when people are dead that we can safely show how much we cared about them. We know that it's too late then for them to do anything about it.

The greatest mystery of all is the human heart.

read widely, not in order to copy someone else's style, but to learn to appreciate and recognize good writing and to see how the best writers have achieved their result. Poor writing is, unfortunately, infectious and should be avoided.

Man is diminished if he lives without knowledge of his past; without hope of a future he becomes a beast.

A letter is paradoxically the most revealing and the most deceptive of confessional revelations. We all have our inconsistencies, prejudices, irrationalities which, although strongly felt at the time, may be transitory. A letter captures the mood of the moment. The transitory becomes immutably fixed, part of the evidence for the prosecution or the defence.

It's possible to fight intolerance, stupidity and fanaticism when they come separately. When you get all three together it's probably wiser to get out, if only to preserve your sanity.