Gregory B. Sadler - That Philosophy Guy

Gregory B. Sadler - That Philosophy Guy I am an educator, public speaker, author, and consultant, helping people study philosophy and to put it into practice

I am an educator, public speaker, author, and consultant who develops high-quality instructional content. One of my talents is making resources from philosophical texts and thinkers understandable and accessible to a global audience. I provide a number of paid processional services. I also contribute a lot of content and services for free as a public good. If you'd like to support that pro bono wo

rk, I have a Patreon page - https://www.patreon.com/sadler - you can also support on Buy Me A Coffee - https://www.buymeacoffee.com/A4quYdWoM

If you'd like to subscribe to my newsletter, you can do so here - https://gregorybsadler.substack.com/
If you 'd like to request short personalized videos, you can do that here - https://www.cameo.com/gregorybsadler

Yellowish evening sky tonight, as the rain continues to fall
06/12/2026

Yellowish evening sky tonight, as the rain continues to fall

Starting 3 weeks from today, I'm reprising my 12-week online open access class "Ancient Philosophers On Friendship". Lea...
06/11/2026

Starting 3 weeks from today, I'm reprising my 12-week online open access class "Ancient Philosophers On Friendship". Learn what Aristotle, Seneca, Cicero, and Plutarch among others have to teach us about the range of relationships. Still applicable today!

Full tuition for Ancient Philosophers On Friendship 12-week online course, including participation in weekly lecture/discussion sessions, access to course resources including downloadable handouts and worksheets, and lifetime access to class session recordings

Here's the first in a set of core concept videos on Alan Turing's article "Computing Machinery And Intelligence", this o...
06/11/2026

Here's the first in a set of core concept videos on Alan Turing's article "Computing Machinery And Intelligence", this one introducing his Imitation Game. Later authors will reinterpret it in various ways as a "Turing test." The original is a bit different

Read my work on Substack - https://gregorybsadler.substack.com/Sup...

06/11/2026

Back in the office today, shooting core concept videos on John Searle's "Minds, Brains, and Programs" my Intro students will watch next week. Got to get the work in before heading home to beat the expected bad weather and high winds

Sweet memory of the little cat with the huge personality, the late great Sassy
06/11/2026

Sweet memory of the little cat with the huge personality, the late great Sassy

Here's the latest episode in the Stoic Heart podcast. Andi and I discuss how we drew upon Stoicism to deal with my recen...
06/11/2026

Here's the latest episode in the Stoic Heart podcast. Andi and I discuss how we drew upon Stoicism to deal with my recent trip to the emergency room, some major surgery, and the less-than-ideal (let's say) conditions in the ward before and after surgery

Navigating Unexpected Chaos, Disagreeable People, And The Power Of The "Stoic Shrug"

Did another of my special streaming sessions for paid subscribers earlier this week, this time focused on studying the E...
06/11/2026

Did another of my special streaming sessions for paid subscribers earlier this week, this time focused on studying the Epicurean philosophical tradition. The video is now available for anyone who would like to watch it!

advice for self-directed learners about reasons for studying Epicurean philosophy, what texts to start with, and how to carry out study productively

06/10/2026

A week and a day after coming home from an appendectomy that was kinda rough. Good day for gauging capacity after healing. Walk to work? Check. Videorecord lecturing in front of the chalkboard? Check. Still not up for lots of bending, and have a weight restriction, so no cat shelter open house shifts this week, but overall healing up decently

Here's the third and last Sadler's Lectures podcast episode (for now) on Stanislaw Lem's Summa Theologiae. This one look...
06/10/2026

Here's the third and last Sadler's Lectures podcast episode (for now) on Stanislaw Lem's Summa Theologiae. This one looks at puzzles he raises about freezing people, reconstituting them later, and personal identity

This video focuses on chapter 6 of Stanislaw Lem's Summa Technologiae, specifically the section “Personality and Information”, which discusses thought experiments that bear on turning a person into in

Exploring a paradox about real friendship (and by extension other relationships) that comes up in Seneca's letter 3. Bef...
06/10/2026

Exploring a paradox about real friendship (and by extension other relationships) that comes up in Seneca's letter 3. Before we let someone in fully, it's prudent to judge whether they're the right kind of person. But we need some openness or we won't know

How Long Should We Pause Before Letting Someone In?

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