"There is something more powerful than each of us, a combination
of our efforts, a Great Chain of industry that unites us." - Andrew Ryan
The Principles of Quantum Mechanics is a book written by Rosalind Lutece. It focuses on quantum mechanics -- that which enables Columbia to float. Elizabeth also attacks Booker DeWitt with a copy of this book when he enters the library in Monument Tower.
This is Lutece's second book apart from Barriers to Trans-Dimensional Travel.