千里之行，始于足下。
The journey of a thousand miles begins with a single step.
一个数学家的真正价值在于他们留下的问题。
When you are young, you think you will be happy when you are older. But then you get older and you realize you were happy when you were young.
The best way to learn is by doing and making mistakes.
The past is never dead. It's not even past.
To live is the rarest thing in the world. Most people exist, that is all.
The goal of diplomacy is to resolve disputes through dialogue and cooperation, and promote sustainable peace and development.
