If you want to see what this nation is all about, you have to ride the rails. Look outside as you speed through, and you’ll find the true face of America.

在能源行业取得成功需要创新与责任的平衡。

教育最重要的成果是帮助学生成为独立思考者。

For every dollar you spend purchasing something substantial， expect to pay a dollar in repairs， maintenance， or disposal by the end of its life.