That’s been one of my mantras—focus and simplicity.Simple can be harder than complex，you have to work hard to get your thinking clean to make it simple.
做你自己，没有人比你更好。
世界上最好和最美丽的东西是看不见甚至摸不着的——它们必须用心去感受。
The reaction of weak management to weak operations is often weak accounting.
The only way to do great work is to love what you do.
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.