If we do not end war - war will end us. Everybody says that, millions of people believe it, and nobody does anything.

The history of mankind for the last four centuries is rather like that of an imprisoned sleeper, stirring clumsily and uneasily while the prison that restrains and shelters him catches fire, not waking but incorporating the crackling and warmth of the fire with ancient and incongruous dreams, than like that of a man consciously awake to danger and opportunity.

I felt the first inkling of a thing that presently grew quite clear in my mind, that oppressed me for many days, a sense of dethronement, a persuasion that I was no longer a master, but an animal among the animals, under the Martian heel.With us it would be as with them, to lurk and watch, to run and hide; the fear and empire of man had passed away.

By the toll of a billion deaths man has bought his birthright of the earth, and it is his against all comers; it would still be his were the Martians ten times as mighty as they are. For neither do men live nor die in vain.

Better it is toward the right conduct of life to consider what will be the end of a thing, than what is the beginning of it: for what promises fair at first may prove ill, and what seems at first a disadvantage, may prove very advantageous.

The catastrophe of the atomic bombs which shook men out of cities and businesses and economic relations, shook them also out of their old-established habits of thought, and out of the lightly held beliefs and prejudices that came down to them from the past.

We live in a world of unused and misapplied knowledge and skill.