A "beautifully written" (David Fideler) spiritual biography of Albert Einstein that reveals for the first time the scientific and religious origins of his personal philosophy — "a must-read for anyone who wants to understand the mind of the great physicist" (Jo Marchant) Albert Einstein remains renowned around the world for revolutionizing our understanding of the cosmos, but very few realize that the celebrated scientist had a deep spiritual side. Einstein believed that one wondrous force was woven through all things everywhere—and this sense of the pervasive sacred influenced every aspect of his existence, from his marvelous science to his passionate pacifism.   I Am a Part of Infinity offers the first in-depth exploration of Einstein’s spirituality, showing how he drew on a dazzling diversity of thinkers—from Pythagoras to Plato, Schopenhauer to Spinoza, the Upanishads to Mahatma Gandhi—to create a novel system where mysticism met mathematics, reality was revered, and the human mind was honored as a mirror of the infinite. This wasn’t just a new way of seeing the world. Einstein asked us to commune with the cosmos, to treat every living creature with compassion, to channel the power that permeated all things and put it to use for pure purposes.   Drawing on little-known conversations, recently published letters, and new archival research, I Am a Part of Infinity reveals what Einstein really believed and why his perspective still matters today.