【讲解】：人格高尚的人不可用小事情考验他，却可以委以重任；人格低下的人不可委以重任，却可用小事情考验他。

我不是孩子，我是成人。

The writer's task is to illuminate the dark corners of the human heart.

The strength of a political system lies in its ability to adapt to changing circumstances and to incorporate new ideas and practices.

Simplicity is the ultimate sophistication.

我不是商人；我就是生意本身。