The revolutionary spirit is mighty convenient in this, that it frees one from all scruples as regards ideas. Its hard absolute optimism is repulsive to my mind by the menace of fanaticism and intolerance it contains. No doubt one should smile at these things; but, imperfect Esthete, I am no better Philosopher. All claim to special righteousness awakens in me that scorn and anger from which a philosophical mind should be free.

Some Reminiscences: Easyread Large Bold Edition (ed. 2008)