In art [the Chinese] aim at being exquisite, and in life at being reasonable. - Bertrand Russell

[One] must look into hell before one has any right to speak of heaven.

The opinions that are held with passion are always those for which no good ground exists; indeed the passion is the measure of the holder's lack of rational conviction. Opinions in politics and religion are almost always held passionately.

The theoretical understanding of the world, which is the aim of philosophy, is not a matter of great practical importance to animals, or to savages, or even to most civilized men.