Warner, F. (1897). Adolescence. In F. Warner, The study of children and their school training (pp. 188-197). New York, NY, US: MacMillan Co.
http://dx.doi.org/10.1037/14602-010
We speak of children growing up and as passing on to adolescence, the period between childhood and manhood or womanhood. I shall here refer to some of the points you may observe in the older children, comparing their physical and mental characteristics with those of earlier childhood. Spontaneous movement has been described as the great characteristic of infancy and early childhood; this markedly diminishes as years advance and is replaced by movements adapted both in speech and action by circumstances, expressing intellectuality and reasoning; the child becomes less childish; action should now be more fully under control of the senses, and of the impressions received, and should show the results of previous training. The nerve-system is so far built up (coordinated) by training and social experience that we expect lines of action and methods of thought and of speech, under given circumstances, to be much like that in other children of the same age and social position. (PsycINFO Database Record (c) 2016 APA, all rights reserved)