In search of problems.

With early training in physics, my career was marked by continuous learning and searching for interesting problems in biology. Here, I recount some key events that influenced my choices of research topics. The diversity of topics could be attributed to my own lack of a particular focus and the interests of students and postdocs who happened to join my laboratory. My scientific and educational ventures led to my extensive involvement in Chinese neuroscience and various studies in non-human primates.