抽象不仅仅是隐藏细节；它是关于创建问题域的清晰简洁的模型。
Life is not fair; get used to it.
改变始于倾听，然后与那些你认为在做错误事情的人展开对话。
At the end of the day it's not about what you have or even what you've accomplished... it's about who you've lifted up, who you've made better. It's about what you've given back.
