J.S. Mill, Letters, Vol. II, p. 135.

Lancaster found ("The Psychology and Pedagogy of Adolescence," Pedagogical Seminary, July, 1897) that among 598 individuals of both sexes in the United States, as many as 518 experienced new religious emotions between the ages of 12 and 20, only 80 having no such emotions at this period, so that more than 5 out of 6 have this experience; it is really even more frequent, for it has no necessary tendency to fall into conventional religious moulds.