My experience has been in a short 77 years that in the end when you fight for a desperate cause and have good reasons to fight, you usually win.

Physics is, hopefully, simple. Physicists are not.

No endeavor that is worthwhile is simple in prospect; if it is right, it will be simple in retrospect.

I tried to contribute to the defeat of the Soviets. If I contributed 1%, it is 1% of something enormous.

My experience has been in a short 77 years that in the end when you fight for a desperate cause and have good reasons to fight, you usually win.

A fact is a simple statement that everyone believes. It is innocent, unless found guilty. A hypothesis is a novel suggestion that no one wants to believe. It is guilty, until found effective.

The main purpose of science is simplicity and as we understand more things, everything is becoming simpler.

Had we not pursued the hydrogen bomb, there is a very real threat that we would now all be speaking Russian. I have no regrets.

Two paradoxes are better than one; they may even suggest a solution.

Life improves slowly and goes wrong fast, and only catastrophe is clearly visible.

The science of today is the technology of tomorrow.

Secrecy, once accepted, becomes an addiction.

The best weapon of a dictatorship is secrecy the best weapon of a democracy is openness.

When you come to the end of all the light you know, and it's time to step into the darkness of the unknown, faith is knowing that one of two things shall happen: Either you will be given something solid to stand on or you will be taught to fly.

Two paradoxes are better than one they may even suggest a solution.

Nor should we exclude the possibility that Islamic terrorism may begin to make common cause with Western political extremists of the far Left and far Right.

We used to think that revolutions are the cause of change. Actually it is the other way around: change prepares the ground for revolution.

Our income are like our shoes; if too small, they gall and pinch us; but if too large, they cause us to stumble and trip.

The present contains nothing more than the past, and what is found in the effect was already in the cause.

To believe in a just law of cause and effect, carrying with it a punishment or a reward, is to believe in righteousness.

I wish I knew at 14 not to put much thought into what other people my age said to me, cause we were all looking for the answers. So I wish I knew that other people really don't know any more than you do!

One of the things that has always motivated me to write is the desire to get it out and look at it in an objective way, so that it doesn't cause me any serious pain by staying inside.

There are nuclear weapons in China, Iran, Korea and Pakistan. It wouldn't take much to send a couple of warheads off on this planet somewhere that would cause a lot of environmental damage, then if you have got someone who wants to retaliate you have real problems.

I never considered a difference of opinion in politics, in religion, in philosophy, as cause for withdrawing from a friend.

You have to not listen to the nay sayers because there will be many and often they'll be much more qualified than you and cause you to sort of doubt yourself.

A strong mind always hopes, and has always cause to hope.

While some no other cause for life can give, but a dull habitude to live.

The intelligence investigation under the leadership of Senator Church, which I know has helped cause this investigation by you, points out that the agencies did not disclose certain facts to us and that certain plots were going on.

I accept extinction as best explaining disjoined species. I see that the same cause must have reduced many species of great range to small, and that it may have reduced large genera to so small, and of families.

The probability that we may fail in the struggle ought not to deter us from the support of a cause we believe to be just.

You know, people want to honor me, and on the one hand I just don't want to be a poster child; but on the other, I want to do something classy and great - something where the residuals will go to the cause.

It is the cause, not the death, that makes the martyr.

I think that feeling that if one believed absolutely in any cause, then one must have the confidence, the self-certainty, to go through with that particular course of action.

The cause is hidden; the effect is visible to all.

If we are able to get inside the music and inhabit it convincingly enough, it will cause everyone to find each other in this new psychological space. And that's most exciting.

I hold that the mark of a genuine idea is that its possibility can be proved, either a priori by conceiving its cause or reason, or a posteriori when experience teaches us that it is in fact in nature.

I hope to stand firm enough to not go backward, and yet not go forward fast enough to wreck the country's cause.

I firmly believe that any man's finest hour, the greatest fulfillment of all that he holds dear, is that moment when he has worked his heart out in a good cause and lies exhausted on the field of battle - victorious.

We have indeed at the moment little cause for pride: as a profession we have made a mess of things.

No cause is left but the most ancient of all, the one, in fact, that from the beginning of our history has determined the very existence of politics, the cause of freedom versus tyranny.

The cause-effect sequences in our brains are just as determining, just as inescapable, as anywhere else in Nature.

I want it understood that all these men fought for principle, not for plunder, and that they were true-hearted, honorable soldiers, fighting for what they esteemed was a righteous cause.

Honest people, mistakenly believing in the justice of their cause, are led to support injustice.

Women's rights is not only an abstraction, a cause; it is also a personal affair. It is not only about us; it is also about me and you. Just the two of us.

Today we no longer regard the universe as the cause of our own undeserved troubles but perhaps, on the contrary, as the last refuge from the mismanagement of our earthly affairs.

No shortcomings of other people cause us to be more intolerant than those which are caricatures of our own.

For the cause that lacks assistance, the wrong that needs resistance, for the future in the distance, and the good that I can do.

Poor air quality, which can be influenced by a variety of fumes, chemicals and allergens, is arguably the leading cause of triggers for most asthmatics in urban areas.

The consciousness of the falsity of present pleasures, and the ignorance of the vanity of absent pleasures, cause inconstancy.