History of the military thought of Marx and Engels 并列题名：History of the military thought of Marx and Engels Research on the religious thoughts of Marx and Engels Study on the democratic thoughts of Marx and Engels Dimensions of ethical thought of Marx and Engels a study of the philosophical thought of young Marx and Engels 并列题名：Research on the religious thoughts of Marx and Engels study on the justice idea of marx and engels Study on moral education thought of Marx and Engels 并列题名：Dimensions of ethical thought of Marx and Engels