我尽量多花时间陪伴家人和孩子，但在事业和目标上我也必须自私一点。
I try to dedicate as much time as possible to my family and kids, but I also have to be selfish in terms of my career and my goals.
The best performance improvement is the transition from the nonworking state to the working state.
科学真正的回报在于知道你的工作可以拯救生命。
The joy of discovery in mathematics is like solving a puzzle that the universe has left for us.