It is only in marriage with the world that our ideals can bear fruit; divorced from it, they remain barren.
No satisfaction based upon self-deception is solid.
Science, by itself cannot, supply us with an ethic.
Writing can be either readable or precise, but not at the same time.
Something of the hermit's temper is an essential element in many forms of excellence, since it enables men to resist the lure of popularity, to pursue important work in spite of general indifference or hostility, and arrive at opinions which are opposed to prevalent errors.
This, however, is a passing nightmare; in time the earth will become again incapable of supporting life, and peace will return.