The issue of continuity and change of morality has always preoccupied sociologists. Lived morality, which functions in various social environments, comprises a broad spectrum of specific problems. The present paper will focus on a few overriding issues, for example: the Decalogue as a foundation of morality, the attitudes toward basic norms and values, criteria of moral good and evil, and on agencies conducive to solving conflicts and moral dilemmas. Moral changes in Polish society are marked in significant ways by the clash of two ethical norms: Catholic morality and liberal morality (in its various manifestations). The present study is based on empirical data gathered in 1994 and 2009 within the same schools and classes in five cities (Szprotawa, Puławy, Kraśnik, Dęblin, Gdańsk). Repeated surveys allow monitoring the dynamics of changes and ongoing social processes.