Man and Superman

From the book:My dear Walkley: You once asked me why I did not write a Don Juan play. The levity with which you assumed this frightful responsibility has probably by this time enabled you to forget it; but the day of reckoning has arrived: here is your play! I say your play, because qui facit per alium facit per se. Its profits, like its labor, belong to me: its morals, its manners, its philosophy, its influence on the young, are for you to justify. You were of mature age when you made the suggestion; and you knew your man. It is hardly fifteen years since, as twin pioneers of the New Journalism of that time, we two, cradled in the same new sheets, made an epoch in the criticism of the theatre and the opera house by making it a pretext for a propaganda of our own views of life. So you cannot plead ignorance of the character of the force you set in motion. Yon meant me to epater le bourgeois; and if he protests, I hereby refer him to you as the accountable party. I warn you that if you attempt to repudiate your responsibility, I shall suspect you of finding the play too decorous for your taste. The fifteen years have made me older and graver. In you I can detect no such becoming change. Your levities and audacities are like the loves and comforts prayed for by Desdemona: they increase, even as your days do grow.