Zhang Boli, pictured above and 72, has been fighting here even longer than I have. The academician of the Chinese Academy of Engineering and president of Tianjin University of TCM had his gallbladder excised here after working so long. He has kept a low profile when talking about his work in Wuhan."I just did what I am supposed to do," he said. I simply couldn't help but cry when I saw the old man working. How could a twenty-something like me retreat as a seventy–something is still fighting?