The Musar movement (also Mussar movement) is a Jewish ethical, educational and cultural movement that developed in the 19th century in Eastern Europe, particularly among Orthodox Lithuanian Jews. The Hebrew term Musar (מוּסַר), is from the book of Proverbs 1:2 meaning moral conduct, instruction or discipline. The term was used by the Musar movement to refer to efforts to further ethical and spiritual discipline. The Musar Movement made significant contributions to Musar literature and Jewish Ethics.