年輕人是可怕的，因為怎么能知道他的將來不如我們現(xiàn)在呢？但如果一個人到了四十、五十歲還默默無聞，他也就沒有什么可怕的了。
Successful people maintain a positive focus in life no matter what is going on around them.
銀河系中心附近的恒星就像宇宙時鐘，幫助我們繪制時空圖。
The truth is, you can't outrun your past. No matter how fast you go, it's always right there behind you.