I do not think any reasonable person can doubt that in India, China and Japan, if the knowledge of birth control existed, the birthrate would fall very rapidly

It is no credit to the orthodox that they do not now believe all the absurdities that were believed 150 years ago. The gradual emasculation of the Christian doctrine has been effected in spite of the most vigorous resistance, and solely as the result of the onslaughts of freethinkers.

If one lived for ever the joys of life would inevitably in the end lose their savour. As it is, they remain perennially fresh.

A man of Seville is shaved by the Barber of Seville if and only if the man does not shave himself. Does the barber shave himself?

I do not pretend to start with precise questions. I do not think you can start with anything precise. You have to achieve such precision as you can, as you go along.

Right discipline consists, not in external compulsion, but in the habits of mind which lead spontaneously to desirable rather than undesirable activities.

War...seems a mere madness, a collective insanity.