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Legalist School of the Warring States Period (475-221 BC) founded by Han Fei 韓非|韩非[Han2 Fei1] and Li Si 李斯[Li3 Si1], later adopted by Shang Yang 商鞅[Shang1 Yang1] whose reforms helped establish the supremacy of the Qin Dynasty 秦代[Qin1 dai4] (221-207 BC)