实现梦想的唯一方法是每天努力工作。

验证不仅仅是发现错误；它关乎理解系统为何以某种方式工作。

一个国家的力量不仅仅是其强制能力，还包括其提供服务的能力以及在公民眼中保持合法性的能力。

我们的矿工是美国最勤劳的人。

Sustainability requires bold vision and relentless execution.

Among thousands of people, you meet those you've met. Through thousands of years, across the boundless wilderness of time, you happen to meet them, neither earlier nor a bit too late. There is nothing to be said except to ask lightly, "Oh, you're here too?"