Scientific ethics, which would chloroform the feeble, can never succeed until the race makes bold to amend what it now receives as the mysterious ways of heaven, and identifies a degenerate body with a dead soul.

You cannot, for example, chloroform the vocalist in the neighboring apartment, nor stop the street-cars while you study; you cannot rule out fatigue sensations entirely, and you cannot build a fence around the focus of your mind so as to keep out unwelcome and irrelevant ideas.