Descartes’ Secret Notebook: A True Tale of Mathematics, Mysticism, and the Quest to Understand the Universe

A portrait of the great seventeenth-century philosopher and mathematician looks at the contributions of Ren�Descartes, his interest in mysticism and probable membership in the occult brotherhood of Rosicrucians, and his secret notebook, which he kept in code, attempting to redecipher the contents of the long-lost volume. Reprint. 35,000 first printing.