1·The behavior is optimized for the short term and self interest.
该行为是优化的短期和自身利益。
2·Remember that many people will act on their own self interest.
记住，很多人是依他们自身利益来行事的。
3·All his decisions have been entirely governed by self-interest.
他的所有决定都受利己之心的支配。
—— 《牛津词典》
4·Not all of them were acting out of self-interest.
他们当中，并非所有人的行动都是出于利己的目的。
—— 《牛津词典》
5·To sum up: a system of conservation based solely on economic self-interest is hopelessly lopsided.
总而言之：一个完全基于经济利己主义的保护体系是不可救药的不平衡。
6·He hoped his work at the university would give him insight into how questions of morality could be applied to places where self-interest flourished.
他希望他在大学的工作能让他深入了解如何将道德问题应用到那些利己主义盛行的地方。
7·Fortunately, volunteers are not motivated by self-interest, but by altruism.
幸运的是，志愿者们不是被自身利益而是被利他主义推动。
—— 《柯林斯英汉双解大词典》
8·Their current protests are motivated purely by self-interest.
他们目前的抗议纯粹是受私利驱使的。
—— 《柯林斯英汉双解大词典》
9·He is motivated entirely by self-interest.
他做事完全出于私利。
—— 《牛津词典》
10·She was motivated solely by self-interest.
她完全是出于私利。
—— 《牛津词典》