Robert Oppenheimer

The atomic bomb is a weapon that has no limit to its destructive power. It is a weapon that can destroy cities, and it is a weapon that can destroy nations.

There must be no more wars.

We have opened a new age, an age of atomic energy, an age of atomic weapons.

The atomic bomb is a warning. It is a warning to all nations that they must learn to live together in peace.

I carry a great burden of responsibility.

The atomic bomb is a weapon that has changed the world forever.

We have created a monster.

The atomic bomb is not a weapon to be used lightly.

We have opened a Pandora's Box.

Now I am become Death, the destroyer of worlds.

Any man whose errors take ten years to correct is quite a man.

There are children playing in the street who could solve some of my top problems in physics, because they have modes of sensory perception that I lost long ago.

It is perfectly obvious that the whole world is going to hell. The only possible chance that it might not is that we do not attempt to prevent it from doing so.

I need physics more than friends.

We may be likened to two scorpions in a bottle, each capable of killing the other, but only at the risk of his own life.

In some sort of crude sense which no vulgarity, no humor, no overstatement can quite extinguish, the physicists have known sin; and this is a knowledge which they cannot lose.

My childhood did not prepare me for the fact that the world is full of cruel and bitter things.

No man should escape our universities without knowing how little he knows.

Truth, not a pet, is man's best friend.

Genius sees the answer before the question.