Too big a topic for here, but worthy of mention. So many people only want to know what to think - and so many teachers only want to teach that, because you can be pretty lazy in that mode (and now, just look it up on the web...). While of course, I want to know everything, and work at it fairly hard, it's not the whole of my ambition.
Real genius is in having a knack for how to think. This guy has a better handle on that than most.
Just a little balance for a section that's pretty tilted in the "what" direction.
https://www.youtube.com/watch?v=GNhlNSLQAFE
Yeah, though I'm not much of a fan of most, this guy might make my short list.
And yes, I find actual truth a lot more fascinating than "it's turtles all the way down". It's better than anything you could make up.