Geography is the science of the earth as the home of human beings.
地理学是研究地球作为人类家园的科学。
On choosing friends: "Life's too short to hang out with people who aren't resourceful."
Success is not final，failure is not fatel，it is the courage to continue that connts.
改进程序的最好方法是重写它。
最好的性能改进是从非工作状态到工作状态的转变。