Man once surrendering his reason, has no remaining guard against absurdities the most monstrous, and like a ship without rudder, is the sport of every wind.
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.
If people are not laughing at you’re goal, then you’re goals are too small.
Education is the most powerful weapon which you can use to change the world.
The deepest sin against the human mind is to believe things without evidence.
You cannot conquer a free man. The most you can do is kill him.
I think that we must find some way to get more common sense, more rationality, in our decisions and less emotion.
I am heartened to find so much wit in you, that you’d give thought to consequences and choose your way with reason, not passion only.
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!
Science is what we have learned about how to keep from fooling ourselves.