It's no use locking the door after the steed is stolen.
I hope, or I could not live.
But I was too restless to watch long; I'm too Occidental for a long vigil. I could work at a problem for years, but to wait inactive for twenty-four hours - that's another matter.
Human history is, in essence, a history of ideas.
What on earth would a man do with himself, if something did not stand in his way?
Yet across the gulf of space, minds that are to our minds as ours are to those of the beasts that perish, intellects vast and cool and unsympathetic, regarded this earth with envious eyes, and slowly and surely drew their plans against us.