You never fail until you stop trying.
Never do anything against conscience even if the state demands it.
We cannot despair of humanity, since we ourselves are human beings.
You can’t blame gravity for falling in love.
Try not to become a man of success. Rather become a man of value.
Peace cannot be kept by force; it can only be achieved by understanding.
Great spirits have always encountered violent opposition from mediocre minds.
We cannot solve our problems with the same thinking we used when we created them.
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.
Look deep into nature, and then you will understand everything better.
Learn from yesterday, live for today, hope for tomorrow. The important thing is not to stop questioning.
The whole of science is nothing more than a refinement of everyday thinking.
In order to be an immaculate member of a flock of sheep, one must above all be a sheep oneself.
The attempt to combine wisdom and power has only rarely been successful and then only for a short while.
Isn’t it strange that I who have written only unpopular books should be such a popular fellow?
We shall require a substantially new manner of thinking if mankind is to survive.
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.
You have to learn the rules of the game. And then you have to play better than anyone else.
If a cluttered desk is a sign of a cluttered mind, of what, then, is an empty desk a sign?
I speak to everyone in the same way, whether he is the garbage man or the president of the university.
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.
If you can’t explain it to a six year old, you don’t understand it yourself.
Two things are infinite: the universe and human stupidity; and I’m not sure about the universe.
Science without religion is lame; religion without science is blind.
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.
Education is what remains after one has forgotten what one has learned in school.
Life is like riding a bicycle. To keep your balance, you must keep moving.
Logic will get you from A to Z; imagination will get you everywhere.
Insanity is doing the same thing, over and over again, but expecting different results.
Anyone who has never made a mistake has never tried anything new.
Intellectual growth should commence at birth and cease only at death.