Mo Di founded
墨家 (Mòjiā), Mohism, the rationalist counterweight to Confucianism in the Warring States period. Core doctrines:
兼爱 jiān'ài 'impartial care for all,'
非攻 fēigōng 'condemnation of offensive war,' and a thrifty, anti-ritualist ethic. Mohists were also pioneer logicians and military engineers — the school faded after the Qin unification but their texts survive in 《
墨子》.