我对这场战争了解的不多，但我知道美国的很多年轻人都参与了这场战争。
I do not know much about it, but I think some of America's best young men served in this war.
Sustainable quarrying means listening to the land as intently as we listen to shareholders.
如果你想成为真理的真正追求者，那么在你的一生中至少要有一次尽可能怀疑一切。
The trick is not to learn to trust your gut feelings, but rather to discipline yourself to ignore them.
"Experience is simply the name we give our mistakes."