Abstract
Mo Tzu was active in ancient China's academic world during the late Spring and Autumn period and the early Warring States period when the slave system collapsed and the feudal system was gradually established. During this time of radical social change, class antagonism and struggle were acute, and ideological and theoretical struggles were fierce. According to the social classes to which they belonged, thinkers from different social classes and strata gave different answers for the existing social problems. As a result, many schools of thought emerged, and "a hundred schools of thought contended." Among these schools of thought, advocates of Confucianism and followers of Mo Tzu were the most influential. Mutual repudiations developed between the advocates of Confucianism and the followers of Mo Tzu and between the followers of Mo Tzu and the advocates of Yang Tzu. Therefore, criteria for correct opinions became an important question in society. On this question, Mo Tzu voiced his views and conducted a thorough investigation