最重要的是,你必须对自己忠实。
永远看看你还剩下什么。永远不要看你失去了什么。
A mathematician is a device for turning coffee into theorems.
"Courage doesn't always roar. Sometimes courage is the quiet voice at the end of the day saying 'I will try again tomorrow.'"
We don't inherit the oceans from our ancestors; we borrow them from our children.