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Perhaps self-interest may prove a more powerful motivator .

也许，自身利益才是一个更强大的动力。

The fear of loss was a better motivator than the prospect of gain ( which worked too , but less well ) .

对于损失的恐惧相对于利得的前景（这种方法也有效，但是效用不如前者）来说，是更有利的激发因素。

Money is a great motivator .

资金是一种强大的动力。

You can become your own biggest motivator !

你能成为你自己最大的动力！

The desire to rescue a damaged reputation is a powerful motivator .

想要挽回声誉的欲望会给人以极大动力。