"If you wish to study men you must not neglect to mix with the society of children."
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Source : 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
Source : "Astroturf Lobbying Organizations: Do Fake Grassroots Need Real Regulation" by Henry Young, "Illinois Business Law Journal", November 2, 2009.