A bad man is worse when he pretends to be a saint.

Men seem neither to understand their riches nor their strength. Of the former they believe greater things than they should; of the latter, less.

A man that is young in years may be old in hours if he have lost no time.

If we are to achieve things never before accomplished we must employ methods never before attempted

Truth emerges more readily from error than from confusion.

One always starts work with the subject, no matter how tenuous it is, and one constructs an artificial structure by which one can trap the reality of the subject-matter that one has started from.

There is superstition in avoiding superstition.