Robert Oppenheimer

The secret of getting ahead is getting started.

The only way to do great work is to love what you do.

The mind is not a vessel to be filled, but a fire to be kindled.

If you are a scientist, you believe that it is good to find out how the world works; that it is good to find out what the realities are; that it is good to turn over to mankind at large the greatest possible power to control the world.

We knew the world would not be the same. A few people laughed, a few people cried, most people were silent.

The atomic bomb is a weapon which is new in many respects. It is a weapon of terror, a weapon for exterminating whole populations.

The atomic bomb is a weapon for aggressors, and the atomic bomb is a weapon of terror. It is not a defensive weapon. It is not a weapon of precision. It is a weapon for killing people. And its whole history has been one of killing people in a very indiscriminate way.

We have made a thing, a most terrible weapon, that has altered the nature of the world. We have made a thing that has made it impossible for us to live without changing our whole way of life.

It is not possible to be a scientist unless you believe that it is good to learn. It is not possible to be a scientist unless you believe that it is of the highest value to learn.

The atomic bomb made the prospect of future war unendurable. It has led us up those last few steps to the mountain pass; and beyond there is a different country.

I feel that in a world where atomic bombs are possible, the only safety is in a world where atomic bombs are no longer needed.

The atomic bomb is a terrible weapon. It is a weapon that can bring about the destruction of civilization. And it is a weapon that must be controlled.

There are no experts on the future.

We are scientists. We are not politicians. We are not moralists. We are scientists. We have done our job. It is up to others to decide what to do with it.

The atomic bomb is a weapon that has no place in the hands of nations that are not prepared to use it wisely.

It is a problem of how to live with the atomic bomb, and not how to live without it.

The development of atomic weapons has made it clear that there is no alternative to international cooperation.

I am a physicist. I am not a philosopher. I am not a theologian. I am a physicist. And I have done my job.

The atomic bomb is a symbol of the power of science. It is a symbol of the power of man to control nature. And it is a symbol of the responsibility that comes with that power.

I think that we have made a very dangerous discovery, and that we have a very great responsibility.