 For Plato the argument for a timeless idea of beauty does not involve so much whether the gods exist (Plato was not a monotheist) but rather whether there is an immaterial realm independent and superior to the imperfect world of sense.Later Greek thinkers such as Plotinus (c. 204/5–270 CE) expanded Plato's argument to support the existence of a totally transcendent "One", containing no parts.Plotinus identified this "One" with the concept of "Good" and the principle of "Beauty".