主从内而外工作，世界从外而内工作。
The dead are more faithful than the living. They do not change.
Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.
The best way to predict the future is to create it.
在每一次日落中，都有上千种颜色等待被发现。
The most effective debugging tool is still careful thought, coupled with judiciously placed print statements.