[Unedited] Arthur Zajonc with Krista Tippett

Keith Devlin — The Joy of Math: Learning and What It Means To Be Human

[Unedited] Keith Devlin with Krista Tippett

David Sloan Wilson — Evolving a City

[Unedited] David Sloan Wilson with Krista Tippett

Esther Sternberg — The Science of Healing Places

[Unedited] Esther Sternberg with Krista Tippett

Ira Byock — Contemplating Mortality

[Unedited] Ira Byock with Krista Tippett

Martin Rees — Cosmic Origami and What We Don't Know