Life improves slowly and goes wrong fast, and only catastrophe is clearly visible.
-- Edward Teller AA

All truth passes through three stages. First, it is ridiculed. Second, it is violently opposed. Third, it is accepted as being self-evident.
-- Arthur Schopenhauer AA

If you watch a game, it's fun. If you play at it, it's recreation. If you work at it, it's golf.
-- Bob Hope AA

Science is nothing but trained and organized common sense, differing from the latter only as a veteran may differ from a raw recruit: and its methods differ from those of common sense only as far as the guardsman's cut and thrust differ from the manner in which a savage wields his club.
-- Thomas H. Huxley AA