https://en.wikipedia.org/wiki/Charles_I_of_England#/media/File:King_Charles_I,_with_the_Order_of_the_Garter_-_Anthony_van_Dyck.jpgKing Charles I and Vermeer's 'Girl with a Pearl Earring' are examples of the Renaissance's obsession with wearing one pearl earring.
https://en.wikipedia.org/wiki/Thomas_Jefferson#/media/File:Reproduction-of-the-1805-Rembrandt-Peale-painting-of-Thomas-Jefferson-New-York-Historical-Society_1.jpgThomas Jefferson shared his advice on productivity.
https://en.wikipedia.org/wiki/George_Washington#/media/File:Gilbert_Stuart_Williamstown_Portrait_of_George_Washington.jpgGeorge Washington shared his advice on building friendships.