The mathematical physicist Hermann Weyl said with evident amusement, "My work has always tried to unite the true with the beautiful and when I had to choose one or the other, I usually chose the beautiful."[1] The quantum physicist Werner Heisenberg wrote to Einstein, "You may object that by speaking of simplicity and beauty I am introducing aesthetic criteria of truth, and I frankly admit that I am strongly attracted by the simplicity and beauty of the mathematical schemes which nature presents us."[8]