The windows literally tell interesting stories. All of the mottos were selected by Frank Furness's brother, Horace Howard Furness, who was a Shakespearen scholar here at Penn. Horace sat on the library building committee which selected Frank Furness as the library architect.
For a full list of the mottos, scroll to page 85 of the University of Pennsylvania; its history, traditions, buildings and memorials (1916). Not all of the windows have survived.
The quote on the left is from Samuel Daniell's poem, Musophilus and the quote below, from the front doors of the reading room, comes from Richard III, III.352
