Success is not an entitlement. It has to be earned.
成功不是一种权利，必须通过努力获得。
The mathematician does not study pure mathematics because it is useful; he studies it because he delights in it and he delights in it because it is beautiful.
"光线不在于你有多少光，而在于你如何使用它。"
Life is made up of sobs, sniffles, and smiles, with sniffles predominating.
我想把美国从所有阻碍人们前进的事物中解放出来。