The obvious veneration felt by almost all who knew him is contagious, and the reader is soon caught up with his disciples in the sense of being in the presence of something close to wisdom incarnate. Perhaps the most striking thing about him was his combination of a cool head and a warm heart, a blend that shielded him from sentimentality, on the one hand, and indifference, on the other. He was undoubtedly one of the greatest rationalists of all times, resembling in this respect no one as much as Socrates.