Therelationshipbetweenmanandnatureandtheactivitiesofthedamagefromhumanactivitiescantocoordinate.Thevigorousdevelopmentofhumansocietyistocontinueindefinitely,wemusthaveacorrectunderstandingofmanandnature,humanrelationships,makeitharmoniousstate,onlyafundamentalchangeinpeople'sattitudewillcontributetothesocialandhumandevelopment.Sustainabledevelopmentisthecoreideaofaharmoniousrelationshipbetweenhumanbeingsandthenaturalpursuitofthisidealasagoal,SystemrequirementshumansocietyinharmonywiththeEarth'snaturalsystems,andharmony.