Origins of "the weak are meat, and the strong do eat"

Greek historian Thucydides said something similar: "The strong do what they do can and the weak suffer what they must."

(Interestingly enough the Greeks had a y/u as the üpsilon letter..) Thycylides did have some idea. Aristoles too and Plato (the rigid old man had his ideas.. but he was too steady-state: forms don't change or evolve, etc.) IT is a Confucian proverb. *The idea of biological "fascism" or dog-eat-dog isn't new. It was obviously a more pessimistic idea. Natural selection exists but survival of the fittest, obviously not-so-much. Pragmatic and conservative thinkers, throughout history, often saw "realism" and nature as predator-eat-prey but not in terms of diversity, adaptability.. etc. If people haven't noticed the Wachowskis tend to be a bit dark and pessimistic often showing violence and revenge/aggression as a way to stop problems, whereas their bad guys tend to be nothing but predatory thinking and hate.