.. "This too displays Laozi's characteristic way of thinking: everything in the manifest world comes in relative and complementary pairs, and human value judgements are mostly born of relativity.
有無相生，難易相成，長短相形……」，展現了老子思考事情的特色：即現象界一切存在體都是兩兩相對，人世的價值判斷常在對待中產生。