Actually, when I finished writing "Random Thoughts for 2015 Album", I could not bear to say good-bye and move on. Even though I tried to focus on other jobs for several times, my mind was still running. I thought back to the story of my neighbor when I worked as a postdoctoral fellow at the University of Missouri Rolla, US. She was a hard working Russian lady and fought against cancer. Now, she is recovered and become an excellent senior engineer. I thought back to the story of my friends who raised ten children. They adopted two kids from Africa. It was deeply impressive. I thought back other events that were particularly interesting and significant in my life. Ying Li liyinglzh@yahoo.com