"Every social stratum has its own "common sense" which is ultimately the most widespread conception of life and morals. Every philosophical current leaves a sedimentation of "common sense": this is the document of its historical reality. Common sense is not something rigid and static; rather, it changes continuously, enriched by scientific notions and philosophical opinions which have entered common usage. "Common sense" is the folklore of philosophy and stands midway between "folklore" proper (that is, as it is understood) and the philosophy, the science, the economics of the scholars. "Common sense" creates the folklore of the future, that is a more or less rigidified phase of popular knowledge a certain time and place."