学习数学的最好方法就是做数学。
The best way to learn mathematics is to do mathematics.
I don’t paint for the audience. I paint for me.
Evidence-based policymaking leads to better outcomes.
Personality changes more during your 20s than at any other time in life.
The quality of an organization's customer service determines the quality of its customer loyalty.
We are all bound by the social contract to obey the laws， but we also have the right to participate in making those laws.
Hate the sin, love the sinner.