motivation

Money is my motivation.

金钱就是我的动力。

In particular, attributing poor performance to a lack of ability depresses motivation more than does the belief that lack of effort is to blame.

特别是，比起认为缺乏努力是失败的罪魁祸首，将糟糕的表现归咎于能力不足更容易抑制一个人的动力。

The same motivation that can push people to exert more effort in a constructive way could also motivate people to be more likely to engage in unethical behaviors.

同样的动机可以促使人们以一种建设性的方式付出更多的努力，也更有可能诱发人们做出不道德的行为。

He's intelligent enough but he lacks motivation.

他很聪明，但缺乏积极性。