Diversity is essential to happiness and in Utopia there is hardly any. This is a defect in all planned social systems.

The whole of theology, in regard to hell no less than to heaven, takes it for granted that Man is what is of most importance in the Universe of created beings. Since all theologians are men, this postulate has met with little opposition.

I can only say that, while my own opinions as to ethics do not satisfy me, other people's satisfy me still less.

Whatever we know without inference is mental.

The sea, the stars, the night wind in waste places, mean more to me than even the human beings I love best.

The method of "postulating" what we want has many advantages; they are the same as the advantages of theft over honest toil.

No nation was ever so virtuous as each believes itself, and none was ever so wicked as each believes the other.