The number 1.61 is not unfamiliar to mathematicians. It expresses the divine proportion of the golden ratio, to which the whole of wildlife is subordinated. The golden ratio was known already in ancient Egypt, Babylon, India, and China. The great Pythagoras established a secret school where the mystical essence of the golden ratio was studied. Euclid applied it in creating his geometry, and Phidias used it in creating his timeless sculptures. Plato said that the universe was designed in accordance with the golden ratio. And Aristotle found the link between the golden ratio and the law of ethics. The supreme harmony of the golden ratio, as preached by Leonardo da Vinci and Michelangelo, is that beauty and the "golden ratio" are one and the same. This proportion can be seen in the curves of sea shells, in the textures of flowers, in the guise of beetles, and in the beautiful human body.