Motto
Penn's motto is based on a line from Horace’s III.24 (Book 3, Ode 24), quid leges sine moribus vanae proficiunt? ("of what avail empty laws without [good] morals?") From 1756 to 1898, the motto read Sine Moribus Vanae. When it was pointed out that the motto could be translated as "Loose women without morals," the university quickly changed the motto to literae sine moribus vanae ("Letters without morals [are] useless"). In 1932, all elements of the seal were revised, and as part of the redesign it was decided that the new motto "mutilated" Horace, and it was changed to its present wording, Leges Sine Moribus Vanae ("Laws without morals [are] useless").