A good abstraction is one that emphasizes the important details and suppresses the unimportant ones.
你的月亮无法发光是因为我。
Our greatest weakness lies in giving up. The most certain way to succeed is always to try just one more time.
最激动人心的发现往往来自于以全新的方式看待老问题。
The heart is a fragile thing, easily broken, but also capable of great strength.