我只是一个碰巧会唱歌的普通人。

The world is so unpredictable. Things happen suddenly, unexpectedly. We want to feel we are in control of our own existence. In some ways we are, in some ways we're not. We are ruled by the forces of chance and coincidence.

教师必须具有健康的体魄，农人的身手，科学的头脑，艺术的兴味，改革社会的精神。

在野外，没有第二次机会。你必须第一次就做对。