A man without cash had one arm in a sling. - Robert A. Heinlein

“Sharpie, you’ve got a one-track mind.”
“It’s the main track. Reproduction is the main track; the methods and mores of sexual copulation are the central feature of all higher developments of life.”
“You’re ignoring money and television.”
“Piffle! All human activities including scientific research are either mating dances and care of the young, or the dismal sublimations of born losers in the only game in town.”

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.

The difference between science and the fuzzy subjects is that science requires reasoning, while those other subjects merely require scholarship.