I picked What Is Ancient Philosophy? by Pierre Hadot. That book, and philosophy as a way of life. And this is where Hadot brings out that philosophy is not primarily about the propositional. It’s not primarily about declarative discourse. Philosophy is a way of life in which you’re training skills, states of mind, perspectives, traits of characters, and those are all the components of virtue.
Recorded Tim Ferriss, The Tim Ferriss Show podcast, 25 February 2023 source ↗