Marcus Aurelius had a marvellous sense of who, and where, he was: As the Emperor Antoninus, Rome is my city and my country; but as a man, I am a citizen of the world . . . Asia and Europe are mere corners of the globe, the Great Ocean a mere drop of water, Mount Athos is a grain of sand in the universe. The present instant of time is only a point compared to eternity. All things here are diminutive, subject to change and decay; yet all things proceed from . . . the one Intelligent Cause.