許抗生認為，新道家係「崇尚自然嘅和諧同埋人同自然嘅和諧」，呢個係歷史嘅必然產物。而新道家，應該包含兩方面嘅內容：一個係應屬道家，另一個應該係「新」嘅道家，重點係「新」同「舊」嘅相對。亦即係話應該係同先秦道家有啲唔同。
Xu Kangsheng recognized that the new unification was "advocating the harmony of nature and the harmony between man and nature", which is a necessary thing of history. On the other hand, the new reunification should have two aspects of content: one should be the unification and the other should be the "new" unification, with emphasis on the relative between the "new" and the "old". In other words, it should be a little different from the pre-Qin Taoism.