The wish to hurt, the momentary intoxication with pain, is the loophole through which the pervert climbs into the minds of ordinary men.
The most wonderful discovery made by scientists is science itself.
That is the essence of science: ask an impertinent question, and you are on the way to a pertinent answer.
The world is full of people who never quite get into the first team and who just miss the prizes at the flower show.
It is vain to say human beings ought to be satisfied with tranquillity: they must have action; and they will make it if they cannot find it.