煤炭使美国在世界范围内保持竞争力。
Coal keeps America competitive in the world.
Science is not just about answering questions, but also about discovering new questions to ask.
It's easier to ask forgiveness than it is to get permission.
追求数学真理是一场永无止境的冒险。
我为报纸致哀,我为新闻站台。
如果我能影响那位应该主持所有孩子洗礼的善良仙女,我会要求她给世界上每个孩子的礼物是一种永不磨灭的惊奇感,使之持续一生。