不忘初心、牢记使命
to remain/stay true to the Party's original aspiration and founding mission
例句：我们党要求全党同志不忘初心、牢记使命，就是要提醒全党同志，党的初心和使命是党的性质宗旨、理想信念、奋斗目标的集中体现，越是长期执政，越不能丢掉马克思主义政党的本色，越不能忘记党的初心使命，越不能丧失自我革命精神。
——摘自习近平在主持中共十九届中央政治局第十五次集体学习时的讲话，2019年6月24日
译文：The requirement to stay true to the Party's original aspiration and founding mission is to remind all Party members that the Party's nature, ideals, convictions, and goals manifest themselves in the aspiration and the mission. The longer our Party is in power, the more it should stick to its nature as a Marxist party, the more it should remember its original aspiration and founding mission, and the more it should carry out self-reform.
– from the speech at the 15th group study session of the Political Bureau of the 19th CPC Central Committee, June 24, 2019
