I tell my students to try early in life to find an unattainable objective.
I tell my students to try to know molecules, so well that when they have some question involving molecules, they can ask themselves, What would I do if I were that molecule?
I think all of you know there is no adequate defense against massive nuclear attack.
In fact, death seems to have been a rather late invention in evolution. One can go a long way in evolution before encountering an authentic corpse.
The Vietnamese have a secret weapon. It's their willingness to die beyond our willingness to kill. In effect, they've been saying, You can kill us, but you'll have to kill a lot of us; you may have to kill all of us. And, thank heaven, we are not yet ready to do that.
As far as I know, the most conservative estimates of the number of Americans who would be killed in a major nuclear attack, with everything working as well as can be hoped and all foreseeable precautions taken, run to about fifty million.
The thought that we're in competition with Russians or with Chinese is all a mistake, and trivial. We are one species, with a world to win.