Yet here I stand poor fool what more, not one wit wiser than before.

Art is long, life short, judgment difficult, opportunity transient. To act is easy, to think is hard; to act according to our thought is troublesome. Every beginning is cheerful: the threshold is the place of expectation.

Death is a commingling of eternity with time; in the death of a good man, eternity is seen looking through time.

A king there was once reigning, Who had a goodly flea, Him loved he without feigning, As his own son were he!

The man who acts never has any conscience; no one has any conscience but the man who thinks

The works of Lavoisier and his associates operated upon many of us at that time like the Sun's rising after a night of moonshine: but Chemistry is now betrothed to the Mathematics, and is in consequence grown somewhat shy of her former admirers.

Error is to truth as sleep is to waking. I have observed that one turns, as if refreshed, from error back to truth.