The aim of the paper is to present an exposition of Henry Sidgwick's view of the relationship between philosophy and common sense. Sidgwick's views on such traditional philosophical issues as the existence of God, the free will controversy, and the nature of mind and matter are presented. It is argued that Sidgwick has a very positive attitude toward the beliefs of the educated plain man and that he accepts a philosophical outlook which might warrant us in classifying him, with some (...) qualification, as a common sense realist. (shrink)