Coal miners are the unsung heroes of America's industrial strength.
煤矿工人是美国工业实力的无名英雄。
Courage consists not in hazarding without fear； but being resolutely minded in a just cause.
The universe is a place that is full of surprises, and we are just beginning to understand its mysteries.
强调资源、目标和取舍的重要性。
疯狂与天才之间的界限是由那些害怕两者的人划定的。
阅读是一种同理心的行为。你正在走进别人的鞋子，通过他们的眼睛看世界。