An optimist believes we live in the best possible of worlds.- A pessimist fears that this is true.
You can buy my time and effort, but you have to earn my dedication.
Everything must be made as simple as possible. But not simpler.
Education is the most powerful weapon which you can use to change the world.
If you’re afraid – don’t do it, – if you’re doing it – don’t be afraid.
The test of a first rate intelligence is the ability to hold two opposed ideas in the mind at the same time, and still retain the ability to function.
Never mistake motion for action.
The saddest aspect of life right now is that science gathers knowledge faster than society gathers wisdom.
Natural science does not simply describe and explain nature: it is part of the interplay between us and nature.
I think we judge talent wrong. What do we see as talent? I think I have made the same mistake myself. Things like determination, courage, discipline, temperament, these are also talent.