The more I love humanity in general the less I love man in particular. In my dreams, I often make plans for the service of humanity, and perhaps I might actually face crucifixion if it were suddenly necessary. Yet I am incapable of living in the same room with anyone for two days together. I know from experience. As soon as anyone is near me, his personality disturbs me and restricts my freedom. In twenty-four hours I begin to hate the best of men: one because he’s too long over his dinner, another because he has a cold and keeps on blowing his nose. I become hostile to people the moment they come close to me. But it has always happened that the more I hate men individually the more I love humanity.
Source: "The Brothers Karamazov"