X is work. Y is play. Z is keep your mouth shut.

You can’t solve a problem on the same level you created it.

If you can’t explain it simply, you don’t understand it well enough

Ego=1/Knowledge” More the knowledge lesser the ego, lesser the knowledge more the ego.

The question hat drives me hazy: Am I or the others crazy?

The difference between stupidity and genius is that genius has its limits.

Only a life lived for others is a life worthwhile.

They come into being not through demonstration but through revelation, through the medium of powerful personalities.

As our circle of knowledge expands, so does the circumference of darkness surrounding it.

Although I am a typical loner in my daily life, my awareness of belonging to the invisible community of those who strive for truth, beauty, and justice has prevented me from feelings of isolation.

Dancers are the athletes of God.

I know not with what weapons World War III will be fought, but World War IV will be fought with sticks and stones.

Your question is the most difficult in the world. It is not a question I can answer simply with yes or no. I am not an Atheist. I do not know if I can define...

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.

You can never solve a problem on the level on which it was created.

It is my view that the vegetarian manner of living, by its purely physical effect on the human temperament, would most beneficially influence the lot of mankind.

If I were to remain silent, I’d be guilty of complicity.

It is every man’s obligation to put back into the world at least the equivalent of what he takes out of it.

Nothing that I can do will change the structure of the universe. But maybe, by raising my voice I can help the greatest of all causes – goodwill among men and peace on earth.

We scientists, whose tragic destiny it has been to make the methods of annihilation ever more gruesome and more effective, must consider it our solemn and transcendent duty to do all in our power in...

An attempt at visualizing the Fourth Dimension: Take a point, stretch it into a line, curl it into a circle, twist it into a sphere, and punch through the sphere.

The release of atom 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.

In matters of truth and justice, there is no difference between large and small problems, for issues concerning the treatment of people are all the same.

The fairest thing we can experience is the mysterious. It is the fundamental emotion which stands at the cradle of true art and true science. He who know it not and can no longer wonder,...

The mere formulation of a problem is far more essential than its solution, which may be merely a matter of mathematical or experimental skills. To raise new questions, new possibilities, to regard old problems from...

A hundred times every day I remind myself that my inner and outer life are based on the labors of others.

Perfection of means and confusion of ends seem to characterize our age

Academic chairs are many, but wise and noble teachers are few; lecture-rooms are numerous and large, but the number of young people who genuinely thirst after truth and justice is small.

Isn’t it strange that I who have written only unpopular books should be such a popular fellow?

If God has created the world, his primary worry was certainly not to make its understanding easy for us.

The pursuit of truth and beauty is a sphere of activity in which we are permitted to remain children all our lives.

Anger dwells only in the bosom of fools.

Science can only ascertain what is, but not what should be, and outside of its domain value judgments of all kinds remain necessary.

But science can only be created by those who are thoroughly imbued with the aspiration toward truth and understanding. This source of feeling, however, springs from the sphere of religion. To this there also belongs...

Love is a better master than duty.

Intellectual growth should commence at birth and cease only at death.

I don’t try to imagine a personal God; it suffices to stand in awe at the structure of the world, insofar as it allows our inadequate senses to appreciate it.

There can be no positiveresult through negativeattitude. Think positive. Live positive.

Hope that justice will be done to those brave men who stood up for their convictions.

Imagination ist alles. Es ist die vorschau des lebens auf die kommenden attraktionen.

For an idea that does not first seem insane, there is no hope.

I don’t know what weapons will be used in world war three, but in world war four people will use sticks and stones.

Nature hides her secrets because of her essential loftiness, but not by means of ruse.

The analogy I like is this: imagine being able to see the world but you are deaf, and then suddenly someone gives you the ability to hear things as well – you get an extra...

If people are good only because they fear punishment, and hope for reward, then we are a sorry lot indeed.

After a certain high level of technical skill is achieved, science and art tend to coalesce in esthetics, plasticity, and form. The greatest scientists are always artists as well.

But their intervention makes our acts to serve ever less merely the immediate claims of our instincts.

I cannot believe that God plays dice with the cosmos

Politics is far more complicated than physics.

The real problem is in the hearts and minds of men. It is easier to denature plutonium than to denature the evil spirit of man.