Steven Strogatz is the Jacob Gould Schurman Professor of Applied Mathematics at Cornell University. Strogatz’s academic interests include nonlinear dynamics and complex systems. Our conversation begins with a discussion about his 2019 book Infinite Powers: How Calculus Reveals the Secrets of the Universe, which includes a fascinating discussion about how math can be thought of as “a lie that reveals the truth” and a story about the advancement of HIV treatments in the 1990s. We also delve into circadian rhythms and his seminal paper on “small-world” networks.