The essence of mathematics lies in its freedom.
I am happy and proud of what I have done， but not completely satisfied.
You have to be willing to be misunderstood if you are going to innovate.
The key to long-term success is creating value for society.
"The past is always with us, but it doesn't have to define our future."
Our scientific power has outrun our spiritual power.We have guided missiles and misguided men.