Pebble in the Sky (Galactic Empire, #3)

by Isaac Asimov

“To the rest of the Galaxy, if they are aware of us at all, Earth is but a pebble in the sky.

If you push us intolerably, is it to be wondered at that we push back? Hating us as you do, can

you complain that we hate in our turn?

There never was a man so helpless as one who cannot remember.

It is very difficult to be sure of anything, once you begin doubting your memory on principle.