“To talk about belief is to inquire at the same time into its validity or truth. It is to enter into a critical study that is not without danger. There is no place for the facile skepticism that says it believes in nothing precisely because it is blind to what it does believe in. We have to be serious because our whole being is at stake here. When I ask what I believe in, I am "searching my conscience," as they used to put it. I am passing judgment on what I believe as this is brought to light. As one advances, a double movement takes place which causes one constantly to come across another belief that is often hidden but which also provides the pause needed to move on to its criticism. "As one advances" — we either have to advance here or be silent. I cannot say easily what I value or think just now, what I regard as true. I have to do something more difficult, which will undoubtedly involve some political evaluations, if I am to try to bring the roots of my beliefs to light.”