"The word 'God' is for me nothing more than the expression and product of human weaknesses, the Bible a collection of honorable, but still primitive legends which are nevertheless pretty childish. No interpretation, no matter how subtle, can (for me) change this."

"Gravitation is not responsible for people falling in love."

"We shall require a substantially new manner of thinking if mankind is to survive."

"Imagination is everything. It is the preview of life's coming attractions."

"Nationalism is an infantile sickness. It is the measles of the human race."

"The world is in greater peril from those who tolerate or encourage evil than from those who actually commit it."

"The most beautiful experience we can have is the mysterious. It is the fundamental emotion which stands at the cradle of true art and true science. Whoever does not know it and can no longer wonder, no longer marvel, is as good as dead and his eyes are dimmed."

"Intelligent life on other planets? I'm not even sure there is on earth!"

"I believe that Gandhi's views were the most enlightened of all the political men in our time. We should strive to do things in his spirit: not to use violence in fighting for our cause, but by non-participation in anything you believe is evil."

"If tomorrow were never to come, it would not be worth living today."

"The word God is for me nothing more than the expression and product of human weaknesses, the Bible a collection of honorable, but still primitive legends which are nevertheless pretty childish. No interpretation no matter how subtle can (for me) change this. These subtilised interpretations are highly manifold according to their nature and have almost nothing to do with the original text. For me the Jewish religion like all other religions is an incarnation of the most childish superstitions."

"Not until the creation and maintenance of decent conditions of life for all people are recognized and accepted as a common obligation of all people and all countries - not until then shall we, with a certain degree of justification, be able to speak of humankind as civilized."

"For us physicists believe the separation between past, present, and future is only an illusion, although a convincing one."

"The only reason for time is so that everything doesn't happen at once."

"Joy in looking and comprehending is nature's most beautiful gift."

"The man of science is a poor philosopher."

"When we first got married, we made a pact. It was this: In our life together, it was decided I would make all of the big decisions and my wife would make all of the little decisions. For fifty years, we have held true to that agreement. I believe that is the reason for the success in our marriage. However, the strange thing is that in fifty years, there hasn't been one big decision."

"I think and think for months for years. Ninety-nine times the conclusion is false. The hundredth time I am right."

"The only thing that interferes with my learning is my education."

"A question that sometimes drives me hazy: am I or are the others crazy?"

"The grand aim of all science is to cover the greatest number of empirical facts by logical deduction from the smallest number of hypotheses or axioms."

"Education is not the learning of facts, but the training of the mind to think."

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

"Those who have the privilege to know have the duty to act, and in that action are the seeds of new knowledge."

"The single most important decision any of us will ever make is whether or not to believe the universe is friendly."

"God is clever but not dishonest."

"A successful man is he who receives a great deal from his fellow men usually incomparably more than corresponds to his service to them. The value of a man however should be seen in what he gives and not in what he is able to receive."

"Since the mathematicians have invaded the theory of relativity I do not understand it myself any more."

"Creativity is the residue of time wasted."

"Knowledge of what is does not open the door directly to what should be."

"One strength of the communist system of the East is that it has some of the character of a religion and inspires the emotions of a religion."

"I am a deeply religious nonbeliever - this is a somewhat new kind of religion."

"Peace cannot be kept by force it can only be achieved by understanding."

"The laws of gravity cannot be held responcible for people falling in love."

"The attempt to combine wisdom and power has only rarely been successful and then only for a short while."

"Science without religion is lame, religion without science is blind."

"You see, wire telegraph is a kind of a very, very long cat. You pull his tail in New York and his head is meowing in Los Angeles. Do you understand this? And radio operates exactly the same way: you send signals here, they receive them there. The only difference is that there is no cat."

"Adversity introduces a man to himself."

"The devil has put a penalty on all things we enjoy in life. Either we suffer in health or we suffer in soul or we get fat."

"All that is valuable in human society depends upon the opportunity for development accorded the individual."

"Anyone who doesn't take truth seriously in small matters cannot be trusted in large ones either."

"I fear the day that technology will surpass our human interaction. The world will have a generation of idiots."

"Only two things are infinite the universe and human stupidity and I'm not sure about the former."

"Coincidence is God's way of remaining anonymous."

"Look deep into nature, and then you will understand everything better."

"The hardest thing in the world to understand is the income tax."

"Nothing is more destructive of respect for the government and the law of the land than passing laws which cannot be enforced."

"Combinatory play seems to be the essential feature in productive thought."

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

"Reading after a certain (time) diverts the mind too much from its creative pursuits. Any man who reads too much and uses his own brain too little falls into lazy habits of thinking."