Quantum mechanics and Schrödinger’s cat tossed out the clockwork world of 1890 and replaced it with a fog of probability in which anything could happ… - Robert A. Heinlein

Every time we killed a thousand Bugs at a cost of one M.I. it was a net victory for the Bugs. We were learning, expensively, just how efficient a total communism can be when used by a people actually adapted to it by evolution; the Bug commisars didn't care any more about expending soldiers than we cared about expending ammo. Perhaps we could have figured this out about the Bugs by noting the grief the Chinese Hegemony gave the Russo-Anglo-American Alliance; however the trouble with 'lessons from history' is that we usually read them best after falling flat on our chins.

Oh, we get along. She lets me have my own way, and later I find out I’ve done just what she wanted me to do.

Dad claims that library science is the foundation of all sciences just
as math is the key — and we will survive or founder, depending on how
well the librarians do their jobs. Librarians didn't look glamorous to
me but maybe Dad had hit on a not very obvious truth.