Mysticism keeps men sane. As long as you have mystery you have health.

It is easy to be a madman: it is easy to be a heretic.

The madman is not the man who has lost his reason. The madman is the man who has lost everything except his reason.

Modesty has moved from the organ of ambition. Modesty has settled upon the organ of conviction where it was never meant to be.

One sees great things from the valley; only small things from the peak.

Orthodoxy is not only (as is often urged) the only safe guardian of morality or order, but is the only logical guardian of liberty, innovation and advance.

Reason is itself a matter of faith. It is an act of faith to assert that our thoughts have any relation to reality at all.

Because children have abounding vitality, because they are in spirit fierce and free, therefore they want things repeated and unchanged. They always say, 'Do it again'; and the grown-up person does it again until he is nearly dead.

Love is not blind; that is the last thing that it is. Love is bound; and the more it is bound the less it is blind.

The poet only asks to get his head into the heavens. It is the logician who seeks to get the heavens into his head. And it is his head that splits.