Carl Sagan Quote

One of the reasons for its success is that science has a built-in, error-correcting machinery at its very heart. Some may consider this an overbroad characterization, but to me every time we exercise self-criticism, every time we test our ideas against the outside world, we are doing science. When we are self-indulgent and uncritical, when we confuse hopes and facts, we slide into pseudoscience and superstition.

Demon-Haunted World: Science as a Candle in the Dark (ed. Ballantine Books, 2011) - ISBN: 9780307801043