He who would learn to fly one day must first learn to stand and walk and run and climb and dance one cannot fly into flying.
I have the same sense of the power and virtue of knowledge that some people get from a religious background.
It's easier to change what you do than people think it is. If you don't...
Science doesn't in the slightest depend on trust. It depends completely on...
The virtues of science are skepticism and independence of thought.
Nothing is so threatening to conventional values as a man who does not...
Ignorance more frequently begets confidence than does knowledge: it is...
No thief, however skillful, can rob one of knowledge, and that is why...