The possibility of organisation in the constructive sense depends on discipline. Running society is constituted by the myriad interlocking of the different habits of many men; if the running social structure is to be altered, even in some relatively small respect, a great number of men and women must simultaneously change various of their habits in complementary ways. It was impossible to introduce Daylight Saving except by an edict of Government, for any partial adherence to the change of hour would have thrown society into confusion. The achievement of Daylight Saving was, therefore, dependent on social discipline, which is thus seen to consist not in the habits of men but in the power of simultaneous and correlated change of those habits. In an ordered State the sense of discipline becomes innate, and the police are but rarely called upon to enforce it. In other words, social discipline, or the alteration of habit at will or command, itself becomes a habit. Military discipline, in so far as it consists of single acts at the word of command, is of a simpler order, but the professional soldier knows well the difference between habitual discipline and even the most intelligent fighting by quick-trained men.
In times of disorder the interlocking of