There are depths in man that go to the lowest hell, and heights that reach the highest heaven, for are not both heaven and hell made out of him, everlasting miracle and mystery that he is.

The old cathedrals are good, but the great blue dome that hangs over everything is better.

Know what thou canst work at, and work at it like a Hercules.

Fame, we may understand, is no sure test of merit, but only a probability of such: it is an accident, not a property, of a man; like light, it can give little or nothing, but at most may show what is given.

Perfect ignorance is quiet, perfect knowledge is quiet; not so the transition from the former to the latter.

Silence is the element in which great things fashion themselves together.

You can make even a parrot into a learned political economist - all he must learn are the two words "supply" and "demand."