许多集团追求自利的目标。

Many groups pursue self-interested aims.

人们是否可以以牺牲他人为代价来追求自己的幸福?

Should people pursue their own happiness at the expense of others?

个人应当享受自由，追求自己的利益和喜好。

Individuals should enjoy the liberty to pursue their own interests and preferences.

他追求她仅仅是为了满足难耐的需要。

He only pursued her to quench an aching need.

我全力以赴追求我的目标。

I went all out to pursue my goals.