Communism is a proposition to structure the world more reasonably, a proposition for changing the world. As such, we have to analyze it and, if we deem it reasonable, act upon it.

To not be afraid in our world is the message that doesn't derive from reason, but maybe from this mysterious capacity given to humans which we call--not without a little embarrassment--faith.

Our science has become terrible, our research dangerous, our findings deadly. We physicists have to make peace with reality. Reality is not as strong as we are. We will ruin reality.

So then learn to conquer your fear. This is the only art we have to master nowadays: to look at things without fear, and to fearlessly do right.

The content of physics is the concern of physicists, its effect the concern of all men.

A world is in flames, and you are cracking silly jokes.

Power is paradoxical.