I believe in good.

Edward Teller

Total security has never been available to anyone. To expect it is unrealistic; to imagine that it can exist is to invite disaster.

Edward Teller

There's no system foolproof enough to defeat a sufficiently great fool.

Edward Teller

There is no case where ignorance should be preferred to knowledge — especially if the knowledge is terrible.

Edward Teller

The preservation of peace and the improvement of the lot of all people require us to have faith in the rationality of humans.

Edward Teller

By having simplified what is known, physicists have been led into realms which as yet are anything but simple.

Edward Teller

I believe in evil. It is the property of all those who are certain of truth.

Edward Teller

Among the people who knew a great deal about the hydrogen bomb, I was the only advocate of it. And that is, I think, my contribution.

Edward Teller

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

Edward Teller

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

Edward Teller

The science of today is the technology of tomorrow.

Edward Teller

I don't want to kill anybody. I am passionately opposed to killing, but I'm even more passionately fond of freedom.

Edward Teller