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.
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.
The whole difference between construction and creation is exactly this: that a thing constructed can only be loved after it is constructed; but a thing created is loved before it exists.
No Quran, no Bible, no Gita, no Cow, is greater than the human self.
Natural science does not simply describe and explain nature: it is part of the interplay between us and nature.
To him who looks upon the world rationally, the world in its turn presents a rational aspect. The relation is mutual.
If you find yourself in a fair fight, you should reexamine your tactics.
All real philosophers have been artists in the realm of concepts.
For me, I am driven by two main philosophies: know more today about the world than I knew yesterday and lessen the suffering of others. You’d be surprised how far that gets you.
Never mistake motion for action.