学习数学的唯一方法就是做数学。

"The more you try to control the truth, the more it controls you."

You are as big as the things that make you angry.

Next time, leave a little earlier. Your son is pleading for you

The anointed don't like to talk about painful trade-offs. They like to talk about happy "solutions” that get rid of the whole problem- at least in their imagination.

I love competing. I love playing. I love trying to beat the best players in the world.

Do what you can wherever you are， from wherever you sit in life. Give me your time or your talent your money if you have it.

The energy sector must embrace innovation, or it will be left behind.