He starts to lose me when he talks about what we should spend our time doing and his answer is "why, but philosophy!!!". Of course a philosopher would say so, as would one of the Historians he so harshly critiques. Sure philosophy concerns itself with fairly timeless ideas. Hell, I'm reading some now and find it stimulating, but there are books on Roman history I find illuminating as well, and archaeological discoveries being made now that he had no clue of that give me perspective on my existence. And also newly learned 3D maps of the Milky way which place my mind more squarely in the universe than any mind that came before mine. Knowledge is the thing worth busying ourselves with; understanding the life we are living in the truest way we can in the time we are alive. That is the best kind of leisure. And sure I'd say so as that is how I spend my time, but maybe someone who spends their time collecting sneakers and Funko pops would say the same of their hobby, that life could not be more full for anyone who didn't spend their time exactly as they had. Who are we to judge each other's chosen path; it's as futile as declaring the best flavor of ice cream.