Sadler's Lectures
Lectures on classic and contemporary philosophical texts and thinkers by Gregory B. Sadler
I'm that YouTube Philosophy Guy! Find more than 3,000 videos in my main channel. Support my video and podcast work! https://www.patreon.com/sadler or https://www.buymeacoffee.com/A4quYdWoM
Learn more about this podcast channel - https://youtu.be/qRvL0gqlyrw and https://gregorybsadler.substack.com/p/the-sadlers-lectures-podcast
Due to popular demand - and with the work underwritten by my Patreon supporters - I have been converting my videos into MP3 files listeners can listen to anywhere they want!
I have a second podcast, Mind & Desire, publishing original episodes on a variety of topics in philosophy, which you can find here - https://gregorybsadler.substack.com/podcast
Learn more about this podcast channel - https://youtu.be/qRvL0gqlyrw and https://gregorybsadler.substack.com/p/the-sadlers-lectures-podcast
Due to popular demand - and with the work underwritten by my Patreon supporters - I have been converting my videos into MP3 files listeners can listen to anywhere they want!
I have a second podcast, Mind & Desire, publishing original episodes on a variety of topics in philosophy, which you can find here - https://gregorybsadler.substack.com/podcast
Episodes
Mentioned books

Feb 10, 2026 • 12min
Jeremy Bentham, Offenses Against Onself - Other Sexual Offenses Considered - Sadler's Lectures
This lecture discusses key ideas from the Utilitarian philosopher, Jeremy Bentham's work, Offenses Against Oneself, a posthumously published part of his Introduction to the Principles of Morals and Legislation.
Here we examine the range of other perceived sexual offenses Bentham discusses and evaluates, all of which involve the feature "that they consist in procuring certain sensations by means of an improper object." Bentham considers five types:
"1. Of the proper species but at an improper time: for instance, after death.
2. Of an object of the proper species and sex, and at a proper time, but in an improper part.
3. Of an object of the proper species but the wrong sex.
4. Of a wrong species.
5. In procuring this sensation by one's self without the help of any other sensitive object."
Of all of these, oddly enough but consistent with some of the medical opinions of his time, he considers the last one, i.e. masturbation, to be the most pernicious.
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 -amzn.to/2Z470Bq

Feb 8, 2026 • 12min
Jeremy Bentham, Offenses Against Onself - Problems With Punishing Same-Sex Relationships
This lecture discusses key ideas from the Utilitarian philosopher, Jeremy Bentham's work, Offenses Against Oneself, a posthumously published part of his Introduction to the Principles of Morals and Legislation.
Here we examine some of the problems that arise out of punishing same-sex relationships using what Bentham calls the "political sanction", i.e. legislation and enforcement.. One of these, which Bentham thinks is a rather weak argument, is that this tends to make more people aware of the perceived offense and give them the idea that it must be pleasurable, since it is being punished. He also raises the likelihood of false or malicious prosecutions, which require only that someone make claims to have seen two men together, and views this as a significant problem. A third problem is that this also makes men liable to extortion or blackmail.
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 -amzn.to/2Z470Bq

Feb 5, 2026 • 13min
Jeremy Bentham, Offenses Against Onself - Punishment, Same-Sex Relationships, and Antipathy
This lecture discusses key ideas from the Utilitarian philosopher, Jeremy Bentham's work, Offenses Against Oneself, a posthumously published part of his Introduction to the Principles of Morals and Legislation.
Here we examine the motive of antipathy, which means feeling pleasure in someone else's pain or feeling pain in someone else's pleasure in Bentham's work, and the role it plays in much of the prohibition or punishment of same-sex relationships.
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 -amzn.to/2Z470Bq

Feb 4, 2026 • 15min
Jeremy Bentham, Offenses Against Onself - Same Sex Relations And Depriving Women
This lecture discusses key ideas from the Utilitarian philosopher, Jeremy Bentham's work, Offenses Against Oneself, a posthumously published part of his Introduction to the Principles of Morals and Legislation.
Here we examine some of the arguments that were being made in favor of prohibiting or punishing male-male sexual relationships on the basis that allowing them would in effect deprive women of their opportunities or even rights to enjoy male-female sexual relationships. Bentham examines each of the arguments in turn and exposes the weaknesses of them.
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 -amzn.to/2Z470Bq

Feb 2, 2026 • 14min
Jeremy Bentham, Offenses Against Onself - Same Sex Relations And Population - Sadler's Lectures
This lecture discusses key ideas from the Utilitarian philosopher, Jeremy Bentham's work, Offenses Against Oneself, a posthumously published part of his Introduction to the Principles of Morals and Legislation.
Here we examine some of the arguments people make for prohibiting or punishing male-male sexual relationships and activity on the basis of it leading to a decline in population. These arguments upon consideration, turn out to be rather weak.
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 -amzn.to/2Z470Bq

Feb 1, 2026 • 14min
Jeremy Bentham, Offenses Against Onself - Common Reasons To Punish Same Sex Relations
This lecture discusses key ideas from the Utilitarian philosopher, Jeremy Bentham's work, Offenses Against Oneself, a posthumously published part of his Introduction to the Principles of Morals and Legislation.
Here we examine some of the common reasons people give in his times and society for prohibiting or punishing male-male sexual relationships and activity. He considers first whether there is any harm caused, then whether it is an "offense against the peace" in any manner, and then whether male-male sexual activity is "enervating" that is, weakening to those who engage in it.
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 -amzn.to/2Z470Bq

Jan 30, 2026 • 14min
From The Eight Capital Vices To The Seven Deadly Sins - Poets, Mystics, and A Few Questions
In this invited lecture at Marist College, hosted by the Catholic Studies Program as part of their Marcelin Lecture Series, I narrate some of the key points and developments in the story of how we ended up with the current list of the Seven Deadly Sins, which are: Gluttony, Lust, Greed, Sloth, Wrath, Envy, and Pride. Originally, these start out as the Eight Capital Vices, a list which includes sadness, acedia, and vainglory, and which does not include envy. So, how did we end up with the list we know today?
The story involves Christian monks in the Egyptian desert, Benedictine monks, a reluctant pope, poets, scholastic professors, confessors, and mystics, and ranges over a millennium of thinkers and texts. In the process, I discuss some of the key players: Evagrius Ponticus, John Cassian, Gregory I, Alcuin, Peter Lombard, Thomas Aquinas, and Dante Alighieri
This portion of the talk discusses the treatments of the seven deadly sins by poets ranging from Prudentius to Chaucer and Dante, and by mystics like St. John of the Cross. We also conclude by examining a few additional topics raised by questions from the audience.
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 3500 philosophy videos in my main YouTube channel - www.youtube.com/user/gbisadler

Jan 28, 2026 • 14min
From The Eight Capital Vices To The Seven Deadly Sins - The Shift To The Seven Sins
In this invited lecture at Marist College, hosted by the Catholic Studies Program as part of their Marcelin Lecture Series, I narrate some of the key points and developments in the story of how we ended up with the current list of the Seven Deadly Sins, which are: Gluttony, Lust, Greed, Sloth, Wrath, Envy, and Pride. Originally, these start out as the Eight Capital Vices, a list which includes sadness, acedia, and vainglory, and which does not include envy. So, how did we end up with the list we know today?
The story involves Christian monks in the Egyptian desert, Benedictine monks, a reluctant pope, poets, scholastic professors, confessors, and mystics, and ranges over a millennium of thinkers and texts. In the process, I discuss some of the key players: Evagrius Ponticus, John Cassian, Gregory I, Alcuin, Peter Lombard, Thomas Aquinas, and Dante Alighieri
This portion of the talk discusses how the eight capital vices get transformed into the schema of the seven deadly sins. A key person in that transformation is the Benedictine monk and pope Gregory I, who makes pride into the root of the seven deadly sins
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 3500 philosophy videos in my main YouTube channel - www.youtube.com/user/gbisadler

Jan 26, 2026 • 9min
From The Eight Capital Vices To The Seven Deadly Sins - The Original Eight Capital Vices
In this invited lecture at Marist College, hosted by the Catholic Studies Program as part of their Marcelin Lecture Series, I narrate some of the key points and developments in the story of how we ended up with the current list of the Seven Deadly Sins, which are: Gluttony, Lust, Greed, Sloth, Wrath, Envy, and Pride. Originally, these start out as the Eight Capital Vices, a list which includes sadness, acedia, and vainglory, and which does not include envy. So, how did we end up with the list we know today?
The story involves Christian monks in the Egyptian desert, Benedictine monks, a reluctant pope, poets, scholastic professors, confessors, and mystics, and ranges over a millennium of thinkers and texts. In the process, I discuss some of the key players: Evagrius Ponticus, John Cassian, Gregory I, Alcuin, Peter Lombard, Thomas Aquinas, and Dante Alighieri
This portion of the talk discusses the origin of the eight capital vices that precede the schema of the seven deadly sins. We look first at Evagrius Ponticus and then at John Cassian, both important monastic writers.
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 3500 philosophy videos in my main YouTube channel - www.youtube.com/user/gbisadler

Jan 25, 2026 • 11min
From The Eight Capital Vices To The Seven Deadly Sins - Introducing The Topic - Sadler's Lectures
In this invited lecture at Marist College, hosted by the Catholic Studies Program as part of their Marcelin Lecture Series, I narrate some of the key points and developments in the story of how we ended up with the current list of the Seven Deadly Sins, which are: Gluttony, Lust, Greed, Sloth, Wrath, Envy, and Pride. Originally, these start out as the Eight Capital Vices, a list which includes sadness, acedia, and vainglory, and which does not include envy. So, how did we end up with the list we know today?
The story involves Christian monks in the Egyptian desert, Benedictine monks, a reluctant pope, poets, scholastic professors, confessors, and mystics, and ranges over a millennium of thinkers and texts. In the process, I discuss some of the key players: Evagrius Ponticus, John Cassian, Gregory I, Alcuin, Peter Lombard, Thomas Aquinas, and Dante Alighieri
This portion of the talk introduces the topic and discusses briefly how the conceptions of eight capital vices and seven deadly sins become so important within western culture.
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 3500 philosophy videos in my main YouTube channel - www.youtube.com/user/gbisadler


