In the later part of his creative life Nietzsche suffered acutely from loneliness. Like his alter ego, Zarathustra, he found himself alone on a (Swiss) mountain top. But, intellectually at least, he accepted this condition. Since, he reasoned, a radical social critic, a 'free spirit' such as himself, sets himself ever more in opposition to the foundational agreements on which social life depends, he reduces the pool of possible comrades, and so of possible friends, to vanishing point.
