I wrote these words on the flight from Guangzhou to Wuxi on February 10th. I would like to cherish the memory of Dr. Armengol, who has passed away for four months now. Dr. Armengol founded the Digestive and Endoscopy Department of Vall d'Hebron University Hospital in Spain. And he was president of European Society of Gastrointestinal Endoscopy between 1994 and 1996. He served as president of Spanish Society of Digestive Endoscopy between 1987 and 1990. He once operated on former Cuban President Fidel Castro. Since 2010, I have led groups of presidents to visit his hospital many times. He personally flew to Guangzhou to the global press conference of the new company I invested in even when he was sick in 2014 and 2015. He even performed a surgery for Guangdong Provincial People’s Hospital during his visit to China in 2015. I introduced him to Guangdong Provincial People’s Hospital, Guangzhou First People’s Hospital and The First Affiliated Hospital of Shenzhen University. There were a total of six doctors from these three hospitals visited his department in Barcelona as fellows for a year. He specifically rented a house in Barcelona for these fellows. He worked until the very end of his life. I miss Spain. I miss Barcelona. I miss the time when I worked with him in his hospital. And I miss the welcome dinner in the Ritz-Carlton Spain. As time flies, Dr. Armengol is no longer here with us. The person who guided and helped me like a father and a friend is no longer with me. My love for medicine, my love for my country, all these will turn into endless tears. When we witness exciting progress in Chinese hospitals, we should bear it in mind that many of the world’s great doctors have been silently supporting us. After writing these words, I saw a brilliant sunset outside the window of the plane. It is a pity that such a fine day and such a good time cannot be seen by Dr. Armengol. I can only live once, so in the running river of time, I will always remember the story between me and Dr. Armengol.