Sadler's Lectures

Lectures on classic and contemporary philosophical texts and thinkers by Gregory B. Sadler
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Jan 11, 2026 • 15min

David Hume, The Natural History Of Religion - The Development Of Polytheism

This lecture discusses key ideas from the 18th century philosopher and essayist David Hume's essay The Natural History Of Religion. It focuses specifically on the development of what he classifies as "polytheism" (contrasting that with "theism", i.e. monotheism). Hume provides an account that views all of the ancient and contemporary polytheistic religions as derived from natural psychological processes of human beings, developed within their cultures. To support my ongoing work, go to my Patreon site - www.patreon.com/sadler If you'd like to make a direct contribution, you can do so here - www.paypal.me/ReasonIO - or at BuyMeACoffee - www.buymeacoffee.com/A4quYdWoM You can find over 3,500 philosophy videos in my main YouTube channel - www.youtube.com/user/gbisadler You can get Hume's Natural History Of Religion here - https://amzn.to/49oomNH
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Jan 10, 2026 • 12min

David Hume, The Natural History Of Religion - Hume's Argumentative Strategy

This lecture discusses key ideas from the 18th century philosopher and essayist David Hume's essay The Natural History Of Religion. It focuses specifically on the overall structure, arguments, and the assumptions of the work, as well as some of the distinctions Hume relies upon in his text. We also examine what Hume means by the term "natural history" and how it can be applied to religion, in his view. To support my ongoing work, go to my Patreon site - www.patreon.com/sadler If you'd like to make a direct contribution, you can do so here - www.paypal.me/ReasonIO - or at BuyMeACoffee - www.buymeacoffee.com/A4quYdWoM You can find over 3,500 philosophy videos in my main YouTube channel - www.youtube.com/user/gbisadler You can get Hume's Natural History Of Religion here - https://amzn.to/49oomNH
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Jan 8, 2026 • 26min

Jeremy Bentham, Introduction to Principles - Utilitarianism And The Hedonic Calculus

This lecture discusses key ideas from the Utilitarian philosopher, Jeremy Bentham's work, Introduction to the Principles of Morals and Legislation Here we examine his discussion of what he calls the "hedonic calculus", which is how a utilitarian applies the principle of utility in practice for moral decision-making. We look at each of the seven factors Bentham includes in this calculus, and apply them to some everyday examples. To support my ongoing work, go to my Patreon site - www.patreon.com/sadler If you'd like to make a direct contribution, you can do so here - www.paypal.me/ReasonIO - or at BuyMeACoffee - www.buymeacoffee.com/A4quYdWoM You can find over 1500 philosophy videos in my main YouTube channel - www.youtube.com/user/gbisadler Purchase Bentham's Introduction to the Principles of Morals and Legislation -https://amzn.to/2Z470Bq
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Jan 7, 2026 • 13min

A Perfectly Simple God and Our Complicated Lives - The 2008 St. Anselm Lecture, part 3

This is part 3 of the the recording of my invited Saint Anselm Lecture, given in 2008 at Saint Anselm College. Here is the abstract of the paper: One important divine attribute Saint Anselm examines and treats is that of simplicity. His treatment brings out some surprising features of simplicity itself which escape the frameworks of the logic of created being, providing us a fuller, albeit still very partial, understanding of the true nature of that attribute. A deep problem can then arise for the created human being in the course of such speculations and investigations: How can a complex, complicated, composite created being more closely approach a perfectly simple divine being? In both our thought and in our practice, it seems that our attempts to approach God simply introduce even more complexity into things. My paper addresses that problem. The first section of the paper presents five short Anselmian lessons about the divine attribute of simplicity. The second section then frames and explores the problem. The third and final section provides an Anselmian resolution to the problem. To support my ongoing work, go to my Patreon site - www.patreon.com/sadler If you'd like to make a direct contribution, you can do so here - www.paypal.me/ReasonIO - or at BuyMeACoffee - www.buymeacoffee.com/A4quYdWoM You can find over 3,500 philosophy videos in my main YouTube channel - www.youtube.com/user/gbisadler You can get Anselm's Complete Treatises: with Selected Letters and Prayers here - https://amzn.to/3YqF74L
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Jan 6, 2026 • 14min

A Perfectly Simple God and Our Complicated Lives - The 2008 St. Anselm Lecture, part 2

This is part 2 of the the recording of my invited Saint Anselm Lecture, given in 2008 at Saint Anselm College. Here is the abstract of the paper: One important divine attribute Saint Anselm examines and treats is that of simplicity. His treatment brings out some surprising features of simplicity itself which escape the frameworks of the logic of created being, providing us a fuller, albeit still very partial, understanding of the true nature of that attribute. A deep problem can then arise for the created human being in the course of such speculations and investigations: How can a complex, complicated, composite created being more closely approach a perfectly simple divine being? In both our thought and in our practice, it seems that our attempts to approach God simply introduce even more complexity into things. My paper addresses that problem. The first section of the paper presents five short Anselmian lessons about the divine attribute of simplicity. The second section then frames and explores the problem. The third and final section provides an Anselmian resolution to the problem. To support my ongoing work, go to my Patreon site - www.patreon.com/sadler If you'd like to make a direct contribution, you can do so here - www.paypal.me/ReasonIO - or at BuyMeACoffee - www.buymeacoffee.com/A4quYdWoM You can find over 3,500 philosophy videos in my main YouTube channel - www.youtube.com/user/gbisadler You can get Anselm's Complete Treatises: with Selected Letters and Prayers here - https://amzn.to/3YqF74L
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Jan 4, 2026 • 21min

A Perfectly Simple God and Our Complicated Lives - The 2008 St. Anselm Lecture, part 1

This is part 1 of the the recording of my invited Saint Anselm Lecture, given in 2008 at Saint Anselm College. Here is the abstract of the paper: One important divine attribute Saint Anselm examines and treats is that of simplicity. His treatment brings out some surprising features of simplicity itself which escape the frameworks of the logic of created being, providing us a fuller, albeit still very partial, understanding of the true nature of that attribute. A deep problem can then arise for the created human being in the course of such speculations and investigations: How can a complex, complicated, composite created being more closely approach a perfectly simple divine being? In both our thought and in our practice, it seems that our attempts to approach God simply introduce even more complexity into things. My paper addresses that problem. The first section of the paper presents five short Anselmian lessons about the divine attribute of simplicity. The second section then frames and explores the problem. The third and final section provides an Anselmian resolution to the problem. To support my ongoing work, go to my Patreon site - www.patreon.com/sadler If you'd like to make a direct contribution, you can do so here - www.paypal.me/ReasonIO - or at BuyMeACoffee - www.buymeacoffee.com/A4quYdWoM You can find over 3,500 philosophy videos in my main YouTube channel - www.youtube.com/user/gbisadler You can get Anselm's Complete Treatises: with Selected Letters and Prayers here - https://amzn.to/3YqF74L
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Jan 2, 2026 • 13min

Alasdair MacIntyre, After Virtue - Emotivist Culture & Characters - Sadler's Lectures

This lecture discusses key ideas from the 20th and 21st century philosopher and moral theorist, Alasdair MacIntyre's work After Virtue It focuses upon chapter 3, specifically on his discussion of on the types of "characters" - social roles emblematic of a culture -- typical of late modern Emotivist culture. These are the rich aesthete, the manager, and the therapist. To support my ongoing work, go to my Patreon site - www.patreon.com/sadler If you'd like to make a direct contribution, you can do so here - www.paypal.me/ReasonIO - or at BuyMeACoffee - www.buymeacoffee.com/A4quYdWoM You can find over 3,500 philosophy videos in my main YouTube channel - www.youtube.com/user/gbisadler You can get MacIntyre's After Virtue here - amzn.to/2RiplGT
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Jan 1, 2026 • 13min

Alasdair MacIntyre, After Virtue - Emotivism as a Moral Theory - Sadler's Lectures

This lecture discusses key ideas from the 20th and 21st century philosopher and moral theorist, Alasdair MacIntyre's work After Virtue It focuses upon chapter 3, specifically on his discussion of MacIntyre's analysis of the key and distinctive aspects of Emotivism as a moral theory. Emotivism was presented originally as a meta-ethical theory, but as MacIntyre notes, it develops into its own ethical stance that rules out the possibility of rational inquiry into and agreement upon moral matters. To support my ongoing work, go to my Patreon site - www.patreon.com/sadler If you'd like to make a direct contribution, you can do so here - www.paypal.me/ReasonIO - or at BuyMeACoffee - www.buymeacoffee.com/A4quYdWoM You can find over 3,500 philosophy videos in my main YouTube channel - www.youtube.com/user/gbisadler You can get MacIntyre's After Virtue here - amzn.to/2RiplGT
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Dec 30, 2025 • 6min

Alasdair MacIntyre, After Virtue - Meaning and Use of Language - Sadler's Lectures

This lecture discusses key ideas from the 20th and 21st century philosopher and moral theorist, Alasdair MacIntyre's work After Virtue It focuses upon chapter 2, specifically on his discussion of the distinction between the meaning and the use of moral language, using several examples. This will become particularly important in his analysis of Emotivism as a moral theory in the following chapter. To support my ongoing work, go to my Patreon site - www.patreon.com/sadler If you'd like to make a direct contribution, you can do so here - www.paypal.me/ReasonIO - or at BuyMeACoffee - www.buymeacoffee.com/A4quYdWoM You can find over 3,500 philosophy videos in my main YouTube channel - www.youtube.com/user/gbisadler You can get MacIntyre's After Virtue here - amzn.to/2RiplGT
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Dec 27, 2025 • 20min

Martin Luther King, Letter From A Birmingham Jail - Racial Justice As An End

Delve into Martin Luther King Jr.'s profound insights in a thoughtful discussion. Explore how he sees racial justice as the ultimate goal of non-violent action. Discover why he believes equality of treatment alone fails to transform society. The metaphor of 'cashing a check' ties racial justice to America's foundational promises. King advocates for integration over segregation, emphasizing dignity and respect for all. The conversation highlights the interconnectedness of communities, showing that injustice anywhere threatens justice everywhere.

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