High Quality Content by WIKIPEDIA articles! The Principle of Hope (German: Das Prinzip Hoffnung) is a book by Ernst Bloch that has become fundamental to dialogue between Christians and Marxists. Published in three volumes in 1954, 1955, and 1959, it explores utopianism, studying the utopian impulses present in art, literature, religion and other forms of cultural expression, and envisages a future state of absolute perfection.