他认为个人的利益并不总是对社会有利，并利用深入调研(作者称之为“基于现实的经济学”)加以证明。

Individual self interest does not always benefit society, he argues, and draws on a deep pool of research (what he calls "reality-based economics") to support his case.

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从这个意义上讲，中日韩深化合作不仅符合三国的利益，也对东亚各国有利。

Thus, the promotion of our cooperation is in the interest of not just the three countries but also of the countries in East Asia in general.

youdao

每个牧民都为了获取狭隘的利益而不断地增加更多的奶牛，因为每个牧民都享有额外奶牛的所有利益，而额外奶牛对牧场的影响却由所有的牧民共同分担。

It was in each herder's narrow interest to keep adding more cows, since each enjoyed all the benefits of an extra cow, while the effects of the extra cow on the pasture were Shared by all.

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The true ruler is the person who both acts on his own interest and of course knows what those interests are.

真正的统治者,仅干对自身有利的事,而且知道有哪些利益对他有好处。

耶鲁公开课 - 政治哲学导论课程节选

But Russia itself has no worse loss for the United States right now could find ways to keep us so tight down in the Middle East for a decade that we could do nothing else.

俄罗斯现在还没有对美利益造成太大损害,有办法,让我们紧紧围绕在中东问题上,在十年内我们只有束手无策。

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The true ruler," he says "is one who is like a shepherd with a flock, but he rules not for the benefit of the flock but, of course, for his own interests, " the good of the shepherd."

他说：，“真正的统治者,是牧者，但规则不是要造福牲畜,而是他自身的利益，对牧者要有好处“

耶鲁公开课 - 政治哲学导论课程节选