And people are very altruistic. The volunteers in this trial are altruists. They're real heroes.

而且人们非常利他。本次试验的志愿者是利他主义者。她们是真正的英雄。

But these places are also where you meet dreamers, idealists, altruists – people who believe in living by principle.

但这些地方也是你遇到梦想家、理想主义者、利他主义者的地方——那些相信以原则为生的人。

Some fraudsters tell themselves they are altruists, doing it to save jobs or investors.

一些欺诈者告诉自己他们是利他主义者，这样做是为了保住工作或投资者。