Follow William on Twitter @WilliamBerkson. William Berkson is a Philosopher and Director of the Jewish Institute for Youth and Family. He did his PhD in Philosophy under the late Sir Karl Popper, author of The Open Society and Its Enemies. He is the author of Fields of Force (Routledge), Learning from Error (Open Court) and Pirke Avot: Timeless Wisdom for Modern Life (Jewish Pub. Soc.).