What's the best person you've ever met?

My grandfather was born in a rich family. My great-grandfather studied medicine in Germany and taught in cheeloo university Medical College after returning home. My great-grandmother graduated from Beiping Women's Normal School. Grandpa received a good education from an early age. 1936 He was admitted to the Physics Department of Peking University with the dream of becoming China Planck, and moved south with the school after the July 7th Incident. After graduating from The National SouthWest Associated University, he went to study in the United States, but now he has made an important decision-to give up his physics major and study aviation engineering instead. Just because Japanese planes were blocked and rampaged over China; After witnessing the tragic situation of soldiers killed by Japanese plane bombing and displaced refugees; After witnessing the bombing of the campus of National Southwest Associated University and the martyrdom of teachers and students, he decided to build the best plane for China so that future generations could study without hiding from bombs. I stayed in the United States for 7 years, finished my master's degree, and practiced in Lockheed and North American Aircraft Company for one and a half years before I mastered the manufacturing technology of P-38 and P-5 1. After returning to China, I worked as a teacher in the Engineering Department of Harbin Military Industry and Air Force, and worked as an engineer in several aircraft design institutes and aircraft manufacturers, and participated in the research and development of J-6, J-7, J-8 and J-8-2. When J- 10 soared and saw the introduction of chief engineer Song on TV, he said excitedly, "This is my military student in Harbin, my student! ! ! "I will go to his grave every year after his death and read him some news about the new development of China aviation industry. I think this is his lifelong pursuit. Every time I return to China, I will go for a walk near the small building where my grandfather last lived. There is a military airport not far from there. Whenever a fighter plane flies over my head with the roar of a motor, I will look up. I think, grandpa's soul and dream should also soar in the air with this roar, overlooking everything happening in this land.