Where is everybody? Humans could theoretically colonize the galaxy in a million years or so, and if they could, astronauts from older civilizations could do the same. So why haven't they come to Earth?

Young man, if I could remember the names of these particles, I would have been a botanist.

Never underestimate the joy people derive from hearing something they already know.

The fact that no limits exist to the destructiveness of this weapon [the 'Super', i.e. the hydrogen bomb] makes its very existence and the knowledge of its construction a danger to humanity as a whole. It is necessarily an evil thing considered in any light. For these reasons, we believe it important for the President of the United States to tell the American public and the world what we think is wrong on fundamental ethical principles to initiate the development of such a weapon.

Experimental confirmation of a prediction is merely a measurement. An experiment disproving a prediction is a discovery.

I hope it won't take long.

Ignorance is never better than knowledge