Africans had to be taught that nudity is wicked; this was done very cheaply by missionaries.

It is because modern education is so seldom inspired by a great hope that it so seldom achieves great results.

If we were all given by magic the power to read each other's thoughts, I suppose the first effect would be to dissolve all friendships.

Man needs, for his happiness, not only the enjoyment of this or that, but hope and enterprise and change.

Science, by itself cannot, supply us with an ethic.

As men begin to grow civilized, they cease to be satisfied with mere taboos.

Your writing is never as good as you hoped; but never as bad as you feared.