Most people have assumed that Albert Einstein, the enigmatic genius of modern science, was an atheist. But according to one Einstein biographer, Walter Isaacson, Einstein was something of a man of faith—a faith stemming from his awe at the great order of the cosmos. For Einstein, the face of God was revealed in the smallest details of the universe, like the curve of a cosine and the absoluteness of a prime number. As he wrote in the summer of 1930,
"The most beautiful thing we can experience is the mysterious…To sense that, behind anything that can be experienced, there is something that our minds cannot grasp, whose beauty and sublimity teaches us only indirectly: this is religiousness."