My old friend Lu Bei is always a single-minded person in doing things. My old friend must be over 50 years old this year. What kind of person is he? What is he pursuing? I still don't understand what kind of person he is from the time I met him. Although we have been old friends for more than 20 years, I really don't know my old friend Lu Bei very well. But I often think of Lu Bei when my life and career are difficult. Things that happened to my old friend can bring me some encouragement. What he does always makes people unexpected, and sometimes I think he is a little crazy, but among the friends I know, he is the one I miss and cherish, and he is the only friend I admire from the bottom of my heart.