The important thing is not to stop questioning. Curiosity has its own reason for existing. One cannot help but be in awe when he contemplates the mysteries of eternity, of life, of the marvelous structure of reality.
Logic will get you from A to B. Imagination will take you anywhere."
If you want to live a happy life, tie it to a goal, not to people or things.
The most beautiful thing we can experience is the mysterious. It is the source of all true art and science.
I never teach my pupils. I only attempt to provide the conditions in which they can learn.
Any intelligent fool can make things bigger and more complex. It takes a touch of genius and a lot of courage to move in the opposite direction.
It has become appallingly obvious that our technology has exceeded our humanity.
Make things as simple as possible but no simpler.
If at first, the idea is not absurd, then there is no hope for it.
Two things are infinite: the universe and human stupidity; and I'm not sure about the universe.