GbEng
那个理论的精髓是为人民服务。 The pith of that theory is serving for people.
一切优秀战略的精髓是简单。 The essence of all good strategy is simplicity.
精髓赋予特性或增添活力的物质或性质 A substance or quality that imparts identity and vitality; essence.
她的书抓住了文艺复兴时期人文主义的精髓. Her book captures the quintessence of Renaissance humanism.