I will hazard a prediction. When you are 80 years old， and in a quiet moment of reflection narrating for only yourself the most personal version of your life story， the telling that will be most compact and meaningful will be the series of choices you have made. In the end， we are our choices. Build yourself a great story.
在数学中，提出问题的艺术必须比解决问题更有价值。
The most profound question is not about the existence of God, but about the existence of the world.
The soul that has conceived one wickedness can nurse no good thereafter.
金钱不会改变人，而是揭露他们的本性。