All actions aim at preservation or change, at making something better or preventing it from becoming worse.

所有行动都是为了维持或者改变，为了让事物变得更美好,为了不让它变得糟糕。

耶鲁公开课 - 政治哲学导论课程节选

Sometimes they inhibit by just preventing the ligand from interacting with its receptor.

有时它们只是,干扰配体和受体的相互作用

耶鲁公开课 - 生物医学工程探索课程节选

This is maybe not widely appreciated, but every decade that goes by we do a better job of incentvizing people and preventing them from being discouraged by risks.

也许在当下，一些措施看似并非有效，但若以十年跨度回望,我们所采取的措施确实能有效地激励人们,并且防止他们因风险受挫。

耶鲁公开课 - 金融市场课程节选

As Dero says, " "soul grows more by subtraction than by addition", by getting rid of these limitations, limitations that are preventing us from fulfilling our potential.

就像俗话说的那样，“做减法比做加法让灵魂成长得更快，减法包括除去那些，阻碍我们发挥潜能的限制。

哈佛公开课 - 幸福课课程节选