The old appeals to racial, sexual and religious chauvinism to rabid nationalist fervor, are beginning not to work.
Carl SaganThe hole in the ozone layer is a kind of skywriting. At first it seemed to spell out our continuing complacency before a witch's brew of deadly perils. But perhaps it really tells of a newfound talent to work together to protect the global environment.
Carl SaganThe method of science, as stodgy and grumpy as it may seem, is far more important than the findings of science.
Carl Sagan