Reason in a creature is a faculty of widening the rules and purposes of the use of all its powers far beyond natural instinct; it acknowledges no limits to its projects. Reason itself does not work instinctively, but requires trial, practice, and instruction in order gradually to progress from one level of insight to another.

One is not rich by what one owns, but more by what one is able to do without with dignity.

We come no nearer the infinitude of the creative power of God, if we enclose the space of its revelation within a sphere described with the radius of the Milky Way, than if we were to limit it to a ball an inch in diameter. All that is finite, whatever has limits and a definite relation to unity, is equally far removed from the infinite... Eternity is not sufficient to embrace the manifestations of the Supreme Being, if it is not combined with the infinitude of space.

We can never, even by the strictest examination, get completely behind the secret springs of action.

Metaphysics is a dark ocean without shores or lighthouse, strewn with many a philosophic wreck.

All our knowledge begins with the senses...

Do what is right, though the world may perish.