During the century after Newton, it was still possible for a man of unusual attainments to master all fields of scientific knowledge. But by 1800, this had become entirely impracticable.

Scientific truth is beyond loyalty and disloyalty.

Meanwhile, fears of universal disaster sank to an all time low over the world.

The age of the pulp magazine was the last in which youngsters, to get their primitive material, were forced to be literate.

Intelligence is an accident of evolution, and not necessarily an advantage.

You can prove anything you want by coldly logical reason---if you pick the proper postulates.

The world is being Americanized and technologized to its limits, and that makes it dull for some people. Reaching the Moon restores the frontier and gives us the lands beyond.