In the classical world and even in the early Christian Middle Ages, philosophers wondered wondered why an object was beautiful. Many realized that beauty was related to a good harmony of the parts in all, symmetry, proportions. For Sant'Agostino is the number, the measure. For Plato the beautiful body refers to the idea of beauty in the Hyperuranion, things are beautiful in the beauty. For Plotin more important than physical beauty is the moral beauty, which is given by virtue, the truth applied to gestures. In all cases, whether physical or moral, all philosophers were in agreement that beauty shines, attracts, causes an eros that rises to a higher source. What is beautiful reveals a transcendent light that Plotin calls charis, the grace.