"To the acquisition of the rare quality of politeness, so much of the enlightened understanding is necessary that I cannot but consider every book in every science, which tends to make us wiser, and of course better men, as a treatise on a more enlarged system of politeness."
Source : "Iggy Azalea Goes In-Depth About Why She Left Twitter -- And What It Has To Do With Her Second Album" by Adam Fleischer, www.mtv.com. February 27, 2015.