"Foul deeds have been done under the most hospitable roofs; terrible crimes have been committed amid the fairest scenes, and have left no trace upon the spot where they were done. I do not believe in mandrake, or in bloodstains that no time can efface. I believe rather that we may walk unconsciously in an atmosphere of crime, and breathe none the less freely. I believe that we may look into the smiling face of a murderer, and admire its tranquil beauty."