The mark of highest originality lies in the ability to develop a familiar idea so fruitfully that it would seem no one else would ever have discovered so much to be hidden in it. – Goethe

To say yes, you have to sweat and roll up your sleeves and plunge both hands into life up to the elbows. It is easy to say no, even if saying no means death. – Jean Anouilh, Antigone, 1942

Civilizations have been founded and maintained on theories which refused to obey facts. – Joe Orton, What the Butler Saw, 1969