一个人最危险的敌人是他自己的口舌。

The key to innovation in economics is to question conventional wisdom.

The truth isn't always beauty, but the hunger for it is.

The labor which it would require to make a single one of these guns by hand would exhaust the patience and perseverance of any ordinary workman.

诗人的任务是表达那些无法言说的事物。

我们不能忽视煤炭的经济作用，但也不能忽视其环境影响。