By the data to date, there is only one animal in the Galaxy dangerous to man -- man himself. So he must supply his own indispensable competition. He has no enemy to help him.
Robert A. HeinleinOur behavior is different. How often have you seen a headline like this?--TWO DIE ATTEMPTING RESCUE OF DROWNING CHILD. If a man gets lost in the mountains, hundreds will search and often two or three searchers are killed. But the next time somebody gets lost just as many volunteers turn out. Poor arithmetic, but very human. It runs through all our folklore, all human religions, all our literature--a racial conviction that when one human needs rescue, others should not count the price.
Robert A. HeinleinI've never understood how God could expect His creatures to pick the one true religion by faith-it strikes me as a sloppy way to run a universe.
Robert A. HeinleinNo storyteller has been able to dream up anything as fantastically unlikely as what really does happen in this mad Universe.
Robert A. Heinlein