If you wish to obtain a great name or to found an establishment, be completely mad; but be sure that your madness corresponds with the turn and temper of your age.
That is what I mean. A bath! The receptacle of porcelain, one turns the taps and fills it, one gets in, one gets out and ghoosh - ghoosh - ghoosh, the water goes down the waste pipe!" "M. Poirot are you quite mad?" "No, I am extremely sane.
True, nervous, very, very dreadfully nervous I had been and am, but why will say that I am mad?! The disease had haunted my senses, not destroyed, not dulled them. Of all the sense of hearing acute.
An unfinished coffin on black tressels, which stood in the middle of the shop, looked so gloomy and death-like that a cold tremble came over him, every time his eyes wandered in the direction of the dismal object: from which he almost expected to see some frightful form slowly rear its head, to drive him mad with terror.
A murderer is less loathsome to us than a spy. The murderer may have acted on a sudden mad impulse; he may be penitent and amend; but a spy is always a spy, night and day, in bed, at table, as he walks abroad; his vileness pervades every moment of his life