When a man, after long years of searching, chances upon a thought which discloses something of the beauty of this mysterious universe, he should not therefore be personally celebrated. He is already sufficiently paid by his experience of seeking and finding.

The Devil craps on the big pile

It is entirely possible that behind the perception of our senses, worlds are hidden of which we are unaware.

If a theory can not be explained to a child, then the theory is probably worthless.

God always takes the simplest way.

Out of the multitude of our sense experiences we take, mentally and arbitrarily, certain repeatedly occurring complexes of sense impression (partly in conjunction with sense impressions which are interpreted as signs for sense experiences of others), and we attribute to them a meaning the meaning of the bodily object.

The really valuable method of thought to arrive at a logically coherent system is intuition.