For nothing burns with such amazing speed, As the dry sticks of a religious creed.

People who honestly mean to be true really contradict themselves much more rarely than those who try to be 'consistent'.

The world's great men have not commonly been great scholars, nor its great scholars great men.

Insanity is often the logic of an accurate mind overtasked. Good mental machinery ought to break its own wheels and levers, if anything is thrust among them suddenly which tends to stop them or reverse their motion. A weak mind does not accumulate force enough to hurt itself; stupidity often saves a man from going mad.

Youth longs and manhood strives, but age remembers.

Science is the topography of ignorance.

The best servant does his work unseen.