领导者必须有勇气在今天做出艰难的决定，以换取更美好的明天。

发现的快乐无疑是推动科学前进的动力。

The only person you should try to be better than is the person you were yesterday.

The universe is not a puzzle to be solved, but a mystery to be lived.

That's because most jokes are lies, and you're single - minded in your pursuit of the truth.

The more we love our friends， the less we flatter them； it is by excusing nothing that pure love shows itself.

光线渐暗，随之而来的是白天的温暖逐渐消失。