Massimo Pigliucci criticizes Lawrence Krauss and the current habit of physicists who speak despairingly of philosophy. Very much worth the read. I give you here a quote he pulls from Einstein in defense of philosophizing…

I fully agree with you about the significance and educational value of methodology as well as history and philosophy of science. So many people today — and even professional scientists — seem to me like someone who has seen thousands of trees but has never seen a forest. A knowledge of the historical and philosophical background gives that kind of independence from prejudices of his generation from which most scientists are suffering. This independence created by philosophical insight is — in my opinion — the mark of distinction between a mere artisan or specialist and a real seeker after truth.

via Rationally Speaking: Lawrence Krauss: another physicist with an anti-philosophy complex.