公孫龍 [ㄍㄨㄥ ㄙㄨㄣ ㄌㄨㄥˊ; gong1 sun1 long2] Gongsun Long (c. 325-250 BC), leading thinker of the School of Logicians of the Warring States Period (475-220 BC) ◄ ►