Authors:

If you wish to study men you must not neglect to mix with the society of children.

Jesse Torrey (1819). “The Moral Instructor, and Guide to Virtue and Happiness: Being a Compendium of Moral Science, in Four Parts ... : with an Appendix Containing Directions for the Institution of Free Public Libraries, and Reading Societies : Designed for the Use of Families, and the Highest Classes in Common Schools and Academies”, p.134
If you wish to study men you must not neglect to mix with the society of children.