要解决复杂的问题，我们必须首先理解产生这些问题的系统。

解析：良知如规矩尺度，指导我们应对变化。

我这一代人最伟大的发现是人类可以通过改变态度来改变生活。

The key to a happy life is not in avoiding problems, but in learning how to deal with them effectively.

The world is what it is; men who are nothing, who allow themselves to become nothing, have no place in it.

Are you upset, little friend? Have you been lying awake worrying? Well, don't worry. I'm here. I'm here to give you reassurance. Everything is all right. The famine will end...the sun will shine tomorrow...

如果我不能表达自己，我就无法在这个星球上生活。