父母们想知道为什么溪流是苦的，而他们自己却毒害了泉水。
Parents wonder why the streams are bitter, when they themselves have poisoned the fountain.
Coal mining is a partnership between the earth and human ingenuity.
The dairy industry must balance tradition with progress to meet the demands of a modern world.
成功的企业是那些像重视利润一样重视员工的企业。
数学是模式的科学，我们研究它们以学习如何逻辑地、批判地和创造性地思考。
我们并不完美，但我们彼此完美契合。
智者从敌人身上学到的比愚者从朋友身上学到的更多。
数学中最激动人心的时刻是当你意识到两个看似不相关的领域有着深刻的联系时。
He always fought, that s what I remember. He fought because he knew if he didn t fight, it would make it that much easier not to fight the next time.
