The only way to have a friend is to be one.

我不认为自己是女性电影制作人，我认为自己是电影制作人。

The spread of liberal democracy and the integration of the world economy have created a situation in which the only legitimate form of government is one that is based on popular sovereignty and respects basic human rights.

跨境合作是解决全球森林砍伐的唯一途径。