A reasonable change of the world can not be instrumented by pure reason.

The savages don't have atom bombs.

Man is imperfect. The reality he creates is always endangered by man.

In this country, you never pull the emergency brake, even when there is an emergency. It is imperative that the trains run on schedule.

The world is bad but not without hope. It is only hopeless when you look at it from an ideal viewpoint.

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.

Everything that is necessary is also easy. You just have to accept it. And the most necessary, the most natural matter on this planet is death.