Standing right next to Independence Hall, is the Library Hall of the American Philosophical Association (APS). The organization was started in 1743 by Benjamin Franklin and numerous others. Still in existence today, it's purpose is to "promote useful knowledge."
The building displays a marble statue of Ben Franklin holding an inverted scepter in one hand, an open book in the other, and is wearing a toga (because togas are a must-have if you want to look philosophical). :)