When a white horse is not a horse

When a white horse is not a horse
Traditional Chinese白馬非馬
Literal meaningwhite horse is not horse
Transcriptions
Standard Mandarin
Hanyu Pinyinbáimǎ fēi mǎ
Wade–Gilespai2-ma3 fei1 ma3

When a white horse is not a horse is a paradox in Chinese philosophy attributed to Gongsun Long, a philosopher of the Warring States period. It appears in the form of a dialogue between two unnamed speakers who debate the proposition "a white horse is not a horse".