I do not know much about it, but I think some of America's best young men served in this war.

我在数学上花费的时间越多，我就越感到兴奋。

我不喜欢被指挥，我喜欢自己做决定。

The greatest glory in living lies not in never falling, but in rising every time we fall.

质量从来不是偶然的，它始终是智慧努力的结果。