Work is of two kinds: first, altering the position of matter at or near the earth's surface relative to other matter; second, telling other people to do so.

And if there were a God, I think it very unlikely that He would have such an uneasy vanity as to be offended by those who doubt His existence

Politics is concerned with herds rather than with individuals, and the passions which are important in politics are, therefore, those in which the various members of a given herd can feel alike.

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

Neither acquiescence in skepticism nor acquiescence in dogma is what education should produce.

Organic life, we are told, has developed gradually from the protozoon to the philosopher, and this development, we are assured, is indubitably an advance. Unfortunately it is the philosopher, not the protozoon, who gives us this assurance.

No satisfaction based upon self-deception is solid.