“Spotlight on the Humanities: Philosophy,” a series of lunchtime philosophy talks, begins Monday, September 30, at noon at Princeton Public Library when Gideon Rosen of Princeton University presents “Philosophy and Free Will.” Mr. Rosen is Stuart Professor of Philosophy and Chair of the Council of the Humanities at Princeton and specializes in metaphysics, epistemology, moral philosophy, philosophy of mathematics, and ethics. He is the author, with John Burgess, of the 1997 book A Subject With No Object: Strategies for Nominalistic Interpretation of Mathematics.

The series continues October 15 when Douglas Husak, professor of philosophy at Rutgers University, will discuss principles of criminalization in a talk called “Philosophy and Law.” A graduate of Denison University who earned doctorates in both philosophy and law from Ohio State University, Mr. Husak is the author of Drugs and Rights and Overcriminalization among other books. He is the editor-in-chief of the journals “Law and Philosophy” and “Criminal Law and Philosophy.”

The third talk of the series, “A Brief History of Freedom,” will be given November 13 by Philip Pettit, Laurance S. Rockefeller University Professor of Politics and Human Values at Princeton University. Mr. Pettit has taught political theory and philosophy at Princeton since 2002. In the talk, Mr. Pettit will offer a historical understanding of the development of the concept of freedom or liberty. He is the author or co-author of more than a dozen books. In March, 2014, he will release a book for general audiences, Just Freedom: A Moral Compass for a Complex World.

“Spotlight on the Humanities: Philosophy” talks will continue through spring, 2014, and will be held in the library’s Community Room. The library is located at 65 Witherspoon Street. Visit www.princetonlibrary.org or call (609) 924-9529.