"Hard times create strong men, strong men create good times, good times create weak men, and weak men create hard times."
Actually, it kind of is.
See The Fourth Turning and any other book based on the Strauss-Howe generational theory.
Is this theory air-tight and inviolable? No. Does it more or less support this “silly trope”? Yes. I think it’s safe to say that it is directionally correct.
Least we can do is downvote it.
Straight out of "Manipulators' Handbook 101".