The Price of Peace: Money, Democracy, and the Life of John Maynard Keynes

The Harvard Psychedelic Club: How Timothy Leary, Ram Dass, Huston Smith, and Andrew Weil Killed the Fifties and Ushered in a New Age for America

A Personal Odyssey

Autobiography (Unabridged)

The Great Guide: What David Hume Can Teach Us about Being Human and Living Well

Perdurabo, Revised and Expanded Edition: The Life of Aleister Crowley

Swami Vivekananda Echoes of Eternity: America’s 1st Guru in His Own Words

Memoirs of a Happy Failure

Parfit: A Philosopher and His Mission to Save Morality

Isaac Newton: A Biography of an Inventor, Astronomer, Physicist, and Philosopher

Exact Thinking in Demented Times: The Vienna Circle and the Epic Quest for the Foundations of Science

Journey to the Edge of Reason: The Life of Kurt Gödel

St. Thomas Aquinas

The Rigor of Angels: Borges, Heisenberg, Kant, and the Ultimate Nature of Reality

I've Been Thinking

Autobiography of a Yogi

How To Be Good: What Socrates Can Teach Us About the Art of Living Well