Two things are infinite: the universe and human stupidity; and I'm not sure about the universe.
There are only two ways to live your life. One is as though nothing is a miracle. The other is as though everything is a miracle.
If you can't explain it to a six year old, you don't understand it yourself.
Logic will get you from A to Z; imagination will get you everywhere.
Life is like riding a bicycle. To keep your balance, you must keep moving.
I speak to everyone in the same way, whether he is the garbage man or the president of the university.
Never memorize something that you can look up.
A clever person solves a problem. A wise person avoids it.
Science without religion is lame, religion without science is blind.
I have no special talents. I am only passionately curious.
