Intellectuals solve problems, geniuses prevent them.
Common sense is the collection of prejudices acquired by age eighteen.
Science without religion is lame, religion without science is blind.
Teamwork is the fuel that allows common people to attain uncommon results.
Relativity applies to physics, not ethics.
As long as there are sovereign nations possessing great power, war is inevitable.
Our technology has surpassed our humanity.
The tragedy of life is what dies inside a man while he lives.
If people are good only because they fear punishment, and hope for reward, then we are a sorry lot indeed.
So long as there are men there will be wars.
Whoever undertakes to set himself up as a judge of Truth and Knowledge is shipwrecked by the laughter of the gods.
The attempt to combine wisdom and power has only rarely been successful and then only for a short while.
Solitude is painful when one is young, but delightful when one is more mature.
If we knew what we were doing it wouldn't be research.
Your imagination is your preview of life's coming attractions.
When the solution is simple, God is answering.
Where the world ceases to be the scene of our personal hopes and wishes, where we face it as free beings admiring, asking and observing, there we enter the realm of Art and Science.
Before God we are all equally wise - and equally foolish.
I never think of the future - it comes soon enough.
What does a fish know about the water in which it swims all its life?
Time is what a clock measures.
Relativity teaches us the connection between the different descriptions of one and the same reality.
God does not play dice with the universe.
The tragedy of life is what dies in the hearts and souls of people while they live.
It is a scale of proportions which makes the bad difficult and the good easy.
Nature shows us only the tail of the lion. But I do not doubt that the lion belongs to it even though he cannot at once reveal himself because of his enormous size.
We should take care not to make the intellect our god; it has, of course, powerful muscles, but no personality.
Truth is what stands the test of experience.
Everything that is really great and inspiring is created by the individual who can labor in freedom.
If A equals success, then the formula is: A = X + Y + Z ; X is work, Y is play, and Z is keeping your mouth shut.
Weakness of attitude becomes weakness of character.
Too many of us look upon Americans as dollar chasers. This is a cruel libel, even if it is reiterated thoughtlessly by the Americans themselves.
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.
The hardest thing to understand in the world is the income tax.
The hardest thing to understand is why we can understand anything at all.
Imagination is more important than knowledge. For knowledge is limited, whereas imagination embraces the entire world, stimulating progress, giving birth to evolution.
I do not know with what weapons World War III will be fought, but World War IV will be fought with sticks and stones.
Never do anything against conscience even if the state demands it.
The release of atomic power has changed everything except our way of thinking [...] the solution to this problem lies in the heart of mankind. If only I had known, I should have become a watchmaker.
A happy man is too satisfied with the present to dwell too much on the future.
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.
Insanity: doing the same thing over and over again and expecting different results.
Coincidence is God's way of remaining anonymous.
The most fundamental question we can ever ask ourselves is whether or not the universe we live in is friendly or hostile.
