I cannot escape from the conclusion that the great ages of progress have depended upon a small number of individuals of transcendent ability.

Mysticism is, in essence, little more than a certain intensity and depth of feeling in regard to what is believed about the universe.

The happiness that is genuinely satisfying is accompanied by the fullest exercise of our faculties and the fullest realization of the world in which we live.

The man who has fed the chicken every day throughout its life at last wrings its neck instead, showing that more refined views as to the uniformity of nature would have been useful to the chicken.

The wise use of leisure, it must be conceded, is a product of civilization and education.

I remain convinced that obstinate addiction to ordinary language in our private thoughts is one of the main obstacles to progress in philosophy.

The commonest objection to birth control is that it is against nature.