I am not an Athenian or a Greek，but a citizen of the world.

The existing is already a resource.

The dog is called Sandy. I like Sandy. He is not clever but he is very cheerful.

成功不是给予的，而是赢得的。

贫贱是苦难的境界，能很好地居于其境者就苦中有乐；富贵是快乐的境地，不能很好地对待富贵的人便会乐极生悲。