计算思维的本质是抽象和自动化。
The essence of computational thinking is abstraction and automation.
你必须保持偏执才能生存。
我不是说唱歌手，我是一场运动。
Faith is the sense of life, that sense by virtue of which man does not destroy himself, but continues to live on.
Treating a person to a meal never fails， and is so easy to do. It’s powerful with old friends and a great way to make new friends.
Every tyrant who has lived has believed in freedom--for himself.