A worthy goal for a year is to learn enough about a subject so that you can’t believe how ignorant you were a year earlier.
一个值得追求的年度目标：充分学习一个领域，以至于你无法相信一年前有多么无知。
"Every book is a conversation between the author and the reader."
The coal industry is the backbone of America.
煤炭行业必须在保持效率的同时适应全球能源转型。