Science is what we have learned about how to keep from fooling ourselves.
If you are going through hell, keep going.
Ignorance more frequently begets confidence than does knowledge: it is those who know little, and not those who know much, who so positively assert that this or that problem will never be solved by science.
Everyone you meet always asks if you have a career, are married, or own a house as if life was some kind of grocery list. But no one ever asks you if you are happy.
Logic is like the sword–those who appeal to it shall perish by it.
Freedom is the right to tell people what they do not want to hear.
To him who looks upon the world rationally, the world in its turn presents a rational aspect. The relation is mutual.
Space is big. You just won’t believe how vastly, hugely, mind-bogglingly big it is. I mean, you may think it’s a long way down the road to the chemist’s, but that’s just peanuts to space.
Writing my own novels in the ’90s…I never imagined that in ten years, science and rationality would require explanation and defense in a world rocked and ruled by religious fervor.
I mean, you could claim that anything’s real if the only basis for believing in it is that nobody’s proved it doesn’t exist!