1724-1804 1896-1980 1927-1987 1938-1971 bernward biographyasaliteraryform christa criticismandinterpretationbernhard criticismandinterpretationvesper criticismandinterpretationwolf developmentalpsychology ethics habermas history identity(psychology)inliterature immanuel jean jürgen kant knowledge lawrence modern piaget sociologyof thomas