Every man must decide whether he will walk in the creative light of altruism or the darkness of destructive selfishness. This is the judgment. Life's persistent and most urgent question is 'What are you doing for others?'

It is not I that smite, stab, and slay, but God and my prince, for my hand and my body are now their servants.

We must beat the Gospel into peoples' heads incessantly because it's the one thing we're prone to forget.

As is the business of tailors to make clothes and cobblers to make shoes, so it is the business of Christians to pray.

Medicine makes people ill, mathematics make them sad and theology makes them sinful.

Where faith is not continually kept in motion and exercised, it weakens and decreases, so that it must indeed vanish; and yet we do not see nor feel this weakness ourselves, except in times of need and temptation, when unbelief rages too strongly; and yet for that very reason faith must have temptations in which it may battle and grow.

Heaven and earth, all the emperors, kings, and princes of the world, could not raise a fit dwelling-place for God; yet, in a weak human soul, that keeps His Word, He willingly resides.