Do what you fear and your fear will die.

The narrow sectarian cannot read astronomy with impunity. The creeds of his church shrivel like dried leaves at the door of the observatory.

Ever the words of the gods resound; But the porches of man's ear seldom in this low life's round are unsealed, that he may hear.

We are shut up in schools and college recitation rooms for ten or fifteen years, and come out at last with a bellyful of words and do not know a thing.

Love and you shall be loved. All love is mathematically just, as much as two sides of an algebraic equation.

The wonder is that we can see these trees and not wonder more.

We lie in the lap of immense intelligence, which makes us receivers of its truth and organ of its activity. When we discern justice, when we discern truth, we do nothing by ourselves, but allow a passage to its beams. If we ask whence this comes, if we seek to pry into the soul that causes, all philosophy is at fault. Its presence or its absence is all we can affirm.