"Keep your mission in mind" emphasizes that you should always keep your responsibilities and obligations in mind and make clear your work goals and directions; "Do not forget your initiative mind" said that he would never forget his original beliefs and goals and always maintain his loyalty and enthusiasm for the cause and the people; "Endeavour" means facing difficulties and challenges, we must strengthen our faith, forge ahead, constantly hone ourselves and improve our ability and quality, so as to overcome difficulties and achieve our goals.
This phrase is used to motivate people to keep a positive attitude in their work, study and life, strive to achieve their goals and make contributions to society.