Don't cry to quit, cry to keep going.

The pain you feel today is the strength you feel tomorrow.

"The beauty of life is in its unpredictability; it's what makes it worth living."

流放不是地点，而是一种状态。

质量不是一个目的地，而是一个旅程。

相对论不仅仅是一种科学理论，而且是一种哲学理论，它深刻地影响了我们对宇宙的概念。