If you want to understand what it means to be afraid, what fear as experienced by human beings is, then your focus must shift. No longer will you be satisfied with mechanical, physiological, neurological accounts. For this inquiry will require you to observe closely what human beings feel, sing, think, write and say to one another.

The earth is, of course, not the geometric center of the universe. But it is certainly the center of our lives.

First and foremost, note that Plato always wrote dialogues, and never attempted to produce a theoretical or scientific treatise. This is a big clue for me. From beginning to end, Plato was aware of the limits of theoretical and technical reasoning, and his dialogues are a massive exploration.

Modern science is a vast attempt to homogenize the universe. Aristotelian science, by contrast, remains faithful to our lived experience, and thus conceives of the world as essentially heterogeneous; composed of different kinds of beings.

Anyone who studies the contemporary phenomenon of global warming, or who fears the insidious impact that the smartphone is having on our lives, or who remembers that there are enough nuclear warheads on enough intercontinental ballistic missiles to destroy human civilization with some ease, understands that modern technology threatens, indeed is likely, to overwhelm us.

The great virtue, I think, of studying Aristotle - and, more importantly, taking him seriously as a possible teacher - is that he presents an alternative view of both science and the world.

What makes defeat so painful is just the awareness that the other has won. It hurts to lose because it feels so good to win.