在主日学校学到的头几课中的一课就是不要把所有事都当成理所当然。

One of the first lessons that I have learnt was not to take things for granted.

youdao

我吃点心的时候，她开始给我讲我们后来称之为“我生活中的一课”的第一部分。

As I ate she began the first of what we later called "my lesson in living."

youdao

同时这种纠结也提示，在从传统的熟人社会向陌生人社会转型的过程中，必须处理好重构社会信任这一课题。

Meanwhile, this also reminds us of the necessity to handle reconstruction of social trust system during the changing process from a traditional society of acquaintances to a strangers' one.

youdao

On the other hand--and this is something that I want to emphasize-- you don't want to carry that too far and one of the lessons of behavioral finance is that markets are not really efficient in a global sense.

而另一方面,我想强调的是...,不要认为这就是真理,行为经济学中的一课就说,从全球的角度看,市场并非全然是有效的

耶鲁公开课 - 金融市场课程节选