The Trap of the Mind

i mediately puzzled and shocked me when i started to do academic philosophy. Every single philosopher over the last two thousand years, since like plato and aristotle, has been writing these massive tomes,. But isn't it obvious that all of them have a partial and limited perspective on the world? That none of them are ultimately true in any absolute sense? None of them truly encompass all of reality? Isn't that obvious? And yet, as obvious as that is, i mean, it's so obvious, is common sense that that's the case. How can those people devote their entire careers and lives to de in their positions?"