The most effective debugging tool is still careful thought, coupled with judiciously placed print statements.
最有效的调试工具仍然是仔细的思考，再加上明智地放置的打印语句。
Every object has a voice if you know how to listen.
To me, fearless is not the absence of fear. It's not being completely unafraid. To me, fearless is having fears. Fearless is having doubts. Lots of them. To me, fearless is living in spite of those things that scare you to death.
有时最难原谅的人是自己。