Donald J. Robertson, a cognitive-behavioural therapist, explains Stoic philosophy and its practical psychological techniques, drawing on primary sources such as Seneca, Marcus Aurelius and Musonius Rufus. Issues combine close reading of ancient texts with comparisons to modern CBT, plus guided exercises and worksheets for paid subscribers.

A leadership newsletter that uses personal storytelling and humor to show readers how their habits, like bluntness, avoidance, or repeated practice, shape their outcomes. It offers reflective, self-examining takeaways rather than checklists of what to do.

Octopusyarn is a personal essay newsletter by a writer who blends self-experiment, startup and crypto anecdotes, and philosophy into reflective, idiosyncratic pieces about willpower, money, and selfhood. Readers get first-person accounts of residencies and personal failures, paired with references to thinkers like Prigogine and frameworks like money scripts.

A philosophy newsletter and podcast offering short meditations and conversations on living well within the limits of a finite life, drawing on Stoics, Simone Weil, Dostoevsky and others. Readers get reflective essays, podcast episode notes and a closing question to carry through the day.