Quick Take
- Narration: Jonathan Todd Ross navigates dense philosophical and mathematical territory with clarity and measured authority, making complex ideas genuinely followable.
- Themes: Intellectual biography, the history of mathematics, optimism as philosophical system
- Mood: Measured and cerebral, with flashes of genuine wonder
- Verdict: Michael Kempe’s day-by-day structure is an inspired approach to a mind that resists conventional biography, and the result is one of the more illuminating introductions to Leibniz currently available in audio.
There is a particular pleasure in listening to intellectual biography during a long run, when you have nothing to do but follow an idea through its implications. I had The Best of All Possible Worlds on during a Saturday morning, and found myself slowing down involuntarily as Kempe described Leibniz sitting in a Viennese coffee house in August 1714, pulling threads between ontology and biology and mathematics while Europe reorganized itself around him. That image, the great polymath in the cafe, drawing connections that would take centuries to fully develop, captures something essential about how Michael Kempe has chosen to write this book.
The structural conceit is elegant: rather than a conventional cradle-to-grave biography, Kempe organizes the book around seven crucial days in Leibniz’s life. October 29, 1675, in Paris, the integral symbol committed to paper. April 17, 1703, in Berlin, a letter about a Jesuit priest in China who has used Leibniz’s binary number system to decode an ancient Chinese system of writing. Each day is a window into a mind at work, and the cumulative effect is more vivid than any linear chronology would produce. You feel Leibniz thinking rather than simply being told about his achievements.
The Challenge of the Universal Genius and How Kempe Meets It
Writing about Leibniz presents a specific problem: his contributions span so many fields that a biography risks becoming a catalog. He independently invented calculus. He conceptualized what we now recognize as the modern computer. He developed the philosophical argument that the existing world is the best that God could have created, the thesis that Voltaire famously and viciously satirized in Candide. No single narrative thread can hold all of that without strain. Kempe’s solution is to resist the temptation to hold it all and instead let each day stand somewhat on its own terms, trusting the reader to feel the coherence of the mind moving across all these domains without needing every connection made explicit.
Jonathan Todd Ross is an excellent narrator for this kind of material. He has the technical vocabulary and pacing to handle philosophy and mathematics without condescending to the listener or rushing past the difficult parts. The calculus chapter in particular requires a narrator who can make the integral symbol feel like a moment of discovery rather than a notation exercise, and Ross delivers that.
What the Book Assumes and What It Explains
This is not a book for complete beginners. Kempe assumes a baseline familiarity with the intellectual culture of the late seventeenth and early eighteenth centuries, the disputes between Newton and Leibniz over the invention of calculus, the relationship between Enlightenment philosophy and the scientific revolution, the role of binary mathematics in the history of computing. Listeners who arrive without that context will still find the book rewarding but may want to keep a reference source nearby for the denser passages.
The reviewer who called this a crisp translation from the German is identifying something real: the book has the precision and the economy of a scholarly text written for a general audience. That is a difficult register to maintain, and Kempe maintains it well. There is no padding here, no detour into biography for its own sake. Every detail serves the central argument about how Leibniz thought and why that thinking still matters.
The Optimism Thesis and Its Contemporary Resonance
The title refers to Leibniz’s argument that God, being omnipotent and benevolent, necessarily created the best of all possible worlds. This is the thesis that makes Leibniz strange and interesting and deeply unfashionable in post-Auschwitz philosophical discourse. Kempe does not try to rehabilitate the argument, exactly, but he does contextualize it within the rational optimism of Leibniz’s era, a genuine belief in progress, in the human capacity to understand and improve the world through reason. That belief reads very differently now, and Kempe is aware of the gap. The book does not resolve it, but it makes you feel it, which is what the best intellectual history does.
At eight hours and forty-six minutes, this is a dense but not exhausting listen. The seven-day structure means you can approach it in sections without losing the thread. For anyone with a serious interest in the history of mathematics, philosophy, or the Enlightenment, this is an unusually well-crafted introduction to a mind that most of us know mainly as a punchline to a Voltaire joke.
Who Should Listen, Who Should Skip
Listen if you have a genuine interest in the history of mathematics or Enlightenment philosophy, if you enjoy intellectual biography that prioritizes the texture of thought over chronological narrative, and if you are comfortable with a book that assumes some prior knowledge. Skip if you are looking for a general popular history requiring no background, or if you want a more personal narrative with human drama at its center. This book is ideas-first, and it is entirely honest about that.
Frequently Asked Questions
Do you need to understand calculus to follow The Best of All Possible Worlds?
No, but a general sense of what calculus is and why its invention mattered helps. Kempe explains the significance of Leibniz’s notation without requiring the reader to work through the mathematics, and Ross’s narration keeps the conceptual explanations accessible.
How does the seven-day structure affect the listening experience compared to a conventional biography?
It creates a sense of Leibniz in motion rather than Leibniz as a fixed historical figure. Each day is self-contained enough to feel like a complete episode, but the cumulative effect is a portrait of a mind at work across decades. Most listeners find it more vivid than a timeline-based approach.
Does the book take sides in the Newton versus Leibniz calculus priority dispute?
Kempe presents the dispute in context but does not adjudicate it in a combative way. His focus is on Leibniz’s interior experience of discovery rather than the subsequent controversy, though the political dimensions of that dispute are acknowledged.
Is the philosophical optimism argument explained clearly enough for listeners without a philosophy background?
Reasonably so. Kempe situates the argument within the intellectual culture of Leibniz’s era and explains why it made sense to a mind shaped by those assumptions. Listeners without formal philosophy training will follow the argument, though some of the technical vocabulary may require a second listen.
