What We Are Reading Today: Ptolemy’s Philosophy Mathematics as a Way of Life by Jacqueline Feke

Updated 27 September 2018
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What We Are Reading Today: Ptolemy’s Philosophy Mathematics as a Way of Life by Jacqueline Feke

  • Feke uncovers references to a complex and sophisticated philosophical agenda scattered among Ptolemy’s technical studies in the physical and mathematical sciences

The Greco-Roman mathematician Claudius Ptolemy is one of the most significant figures in the history of science. He is remembered today for his astronomy, but his philosophy is almost entirely lost to history. This groundbreaking book is the first to reconstruct Ptolemy’s general philosophical system— including his metaphysics, epistemology, and ethics — and to explore its relationship to astronomy, harmonics, element theory, astrology, cosmology, psychology, and theology.

In this stimulating intellectual history, Jacqueline Feke uncovers references to a complex and sophisticated philosophical agenda scattered among Ptolemy’s technical studies in the physical and mathematical sciences. She shows how he developed a philosophy that was radical and even subversive, appropriating ideas and turning them against the very philosophers from whom he drew influence. Feke reveals how Ptolemy’s unique system is at once a critique of prevailing philosophical trends and a conception of the world in which mathematics reigns supreme.

A compelling work of scholarship, Ptolemy’s Philosophy demonstrates how Ptolemy situated mathematics at the very foundation of all philosophy— theoretical and practical— and advanced the mathematical way of life as the true path to human perfection.

Jacqueline Feke is assistant professor of philosophy at the University of Waterloo in Ontario.


What We Are Reading Today: ‘The Treehouse’

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What We Are Reading Today: ‘The Treehouse’

  • Walter excels at building tension and sustaining dread

Author: B P Walter

“The Treehouse” by B P Walter unsettles readers with a story told through the eyes of the perpetrators of a horrible crime. It follows two brothers in their 30s — Robert and Kieran — who are bound by blood, secrets, and a terrible act they committed in their youth. Their inner world is an uneasy position for the reader to inhabit, and at its best, the novel leans into that discomfort. 

This 2025 psychological thriller begins with the broadcast of a television series titled “The Treehouse.” The brothers notice a resemblance between the show and their past that is impossible to ignore.

Someone knows, or seems to know, what they did all those summers ago during a family holiday in Cornwall. Someone has taken their secret and turned it into entertainment. For Robert, especially, the fear of being exposed is suffocating. 

Walter excels at building tension and sustaining dread. The anxiety that coils through Robert’s thoughts is convincing, and the dynamic between the brothers becomes increasingly claustrophobic and toxic as the story unravels. It is clear that this is a family, a household, where love exists alongside something far darker.

The question of what exactly happened in the treehouse in 2004 hums beneath every chapter. Yet, despite a compelling premise and moments of real shock, the novel ultimately fell a little flat for me.

The opening is gripping, but once the story settles into the extended childhood timeline, the pacing begins to falter. The past is important, but it dominates the narrative to the point that the present-day thread, which felt sharper and more urgent with its high stakes, is left wanting. 

The limited presence of secondary characters also makes it ultimately feel more predictable than it should, lacking the external conflicts that made the first act of the book so promising. The twists and turns of the final act arrive in quick succession and are less than satisfying.

This was also a difficult book to emotionally connect with; The characters are flawed, often unlikable, and while that may be intentional, it created distance rather than intrigue. 

“The Treehouse” did not hold my attention in the same way as some of Walter’s previous thrillers. It’s a story that seems to linger more for the atmosphere it creates than for where it takes the reader.