Two things are infinite: the universe and human stupidity; and I’m not sure about the universe.
Insanity is doing the same thing, over and over again, but expecting different results.
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.
If you want your children to be intelligent, read them fairy tales. If you want them to be more intelligent, read them more fairy tales.
Life is like riding a bicycle. To keep your balance, you must keep moving.
Anyone who has never made a mistake has never tried anything new.
Everybody is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is stupid.
I speak to everyone in the same way, whether he is the garbage man or the president of the university.
Coincidence is God’s way of remaining anonymous.
When you are courting a nice girl an hour seems like a second. When you sit on a red-hot cinder a second seems like an hour. That’s relativity.
A clever person solves a problem. A wise person avoids it.
Science without religion is lame, religion without science is blind
If we knew what it was we were doing, it would not be called research, would it?
I have no special talents. I am only passionately curious.
If a cluttered desk is a sign of a cluttered mind, of what, then, is an empty desk a sign?
Learn from yesterday, live for today, hope for tomorrow. The important thing is to not stop questioning.
Try not to become a man of success. Rather become a man of value.
If I were not a physicist, I would probably be a musician. I often think in music. I live my daydreams in music. I see my life in terms of music.
Great spirits have always encountered violent opposition from mediocre minds.
You never fail until you stop trying.
It is not that I’m so smart. But I stay with the questions much longer.
The world is a dangerous place to live, not because of the people who are evil, but because of the people who don’t do anything about it.
When you trip over love, it is easy to get up. But when you fall in love, it is impossible to stand again.
What is right is not always popular and what is popular is not always right.
The measure of intelligence is the ability to change.
In the middle of difficulty lies opportunity.
Peace cannot be kept by force; it can only be achieved by understanding.
Men marry women with the hope they will never change. Women marry men with the hope they will change. Invariably they are both disappointed.
I must be willing to give up what I am in order to become what I will be.
The woman who follows the crowd will usually go no further than the crowd. The woman who walks alone is likely to find herself in places no one has ever been before.
God did not create evil. Just as darkness is the absence of light, evil is the absence of God.
I’d rather be an optimist and a fool than a pessimist and right.
Genius is 1% talent and 99% hard work.
We all know that light travels faster than sound. That’s why certain people appear bright until you hear them speak.
I never think of the future–it comes soon enough.
Weakness of attitude becomes weakness of character.
If you want to live a happy life, tie it to a goal, not to people or things.