Earlier quoted context omitted.
Dtaisk Afai. Cof Lemma, 19:1, 2, 549-552 / https://www.jstor.org/stable/25414613 Let me first give you four quotations. Firstly: “Our youth loves luxury, has bad manners, disregards authority, and has no respect whatsoever for age. Our children today are tyrants; they do not get up when an elderly man enters the room—they talk back to their parents—they are just very bad.” Secondly: “I no longer have any hope for the…
I mean, all of those civilizations rose and fell, so there was certainly a point at which the productivity level was no longer sufficiently globally dominant.
The Kids perceptions and mores change every generation (both in some multidimensional average and in their dispersion) based in response to their elder's beliefs and their material conditions. Those changes could be destructive or not, but the idea that "there is no truth" or we've reached "the end of history" mark a more dangerous part of the cycle.