Nuclear weapons offer us nothing but a balance of terror, and a balance of terror is still terror.

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.

I can conceive of no nightmare so terrifying as establishing communication with a so-called superior (or, if you wish, advanced) technology in outer space.

Death seems to have been a rather late invention in evolution. One can go a long way in evolution before encountering an authentic corpse.

I think all of you know there is no adequate defense against massive nuclear attack.

It's not good enough to give it tender, loving care, to supply it with breakfast foods, to buy it expensive educations. Those things don't mean anything unless this generation has a future. And we're not sure that it does.

Nuclear weapons offer us nothing but a balance of terror, and a balance of terror is still terror.