杨振宁先生翻译“知之为知之，不知为不知，是知也”If you know what you know and know what you don’t know, that is true knowledge.[手指比心]#金句分享#
发布于 美国
侃哥侃英语
杨振宁先生翻译“知之为知之，不知为不知，是知也”If you know what you know and know what you don’t know, that is true knowledge.[手指比心]#金句分享#