To live alone one must be an animal or a god --says Aristotle. There is yet a third case: one must be both --a philosopher.
Source: Twilight of the Idols, , Maxims and Arrows, aph. 3 (1889).
-- Friedrich Nietzsche, (Oct 15 1844-1900), German philosopher, poet; He was a noted critic of Christianity, conformism and nationalism who wrote The Birth of Tragedy, 1872.