You're employing a browser that may not supported by Fb, so we have redirected you to a simpler version to give you the most effective experience.????? ????????? ??? ??????? ????????? ??? ????? ????????? ??? ??????? ????????? ????i?u quan tr?ng là gi? tinh th?n l?c quan, kiên nh?n và bình t?nh. N?m v?ng nh?ng quy t?c c? b?n này, b?n s? t? tin