The notion of rational certainty[1] had developed a long way in four decades. Many now recognize that even to do science we characteristically claim rational certainty where we lack supporting proof of our own, have not engaged in some balancing of evidence, and have not even undertaken any articulate inquiry. Many further recognize that rational reliance is notably voluntary[2]and that our feelings, especially refined feelings, have indispensable roles in determining our willing reliances and in sustaining them. Scientists, and ordinary people, (...) judiciously sidestep the Lockean principle that one`s degree of commitment ought not exceed the evidence one has for it, realizing that Locke's idea supposed a social system of knowing that does not exist even science, much less in the rest of life and around the most important beliefs of life. (shrink)