Global hunger won't be solved by charity alone - it requires systemic change.
全球饥饿问题不能仅靠慈善解决，它需要系统性变革。
The heart of a mother is a deep abyss at the bottom of which you will always find forgiveness.
The best preparation for tomorrow is doing your best today.
成为人类就是在世界中存在，而在世界中存在就是在时间中存在。
煤炭不仅仅是一种商品，它是对美国未来的承诺。
化用李商隐诗句，表达乐观豁达的人生态度。
The only way to change the world is to change yourself.
每一次技术突破的背后，都是无数次失败的积累。