A first-rate, crisp setting out of some basic Stoic terms and ideas. Sellars has a mind continents beyond commercially-motivated popularisers of Stoicism such as Holiday, Pigliucci, or Robertson. Sellars comes across as an authentic, genuinely humble human being who likes using his brain in the service of others.
It's right to analyze stoicism like summing system, but non stoics (non philosophers) don't stay longer this lesson. I think, better to start from definition "philosophy" and overcome to "stoicism"; to differentiate from neighboring things ("Christianity", " Buddhism", "epicurism", "cinism" and other).
