You can't let praise or criticism get to you. It's a weakness to get caught up in either one.

Hope is the thing with feathers that perches in the soul.

化合价的概念是理解化学键的关键。

我不会让我的国家失望。

关于最低工资的辩论应聚焦于证据，而非修辞。

The real and effectual discipline which is exercised over a workman is that of his customers.