Insanity is repeating the same mistakes and expecting different results.

我不喜欢思考极限。

我们都是生命之树上的枝条。

拍卖是发现价值的强大工具。

Diplomacy is not an end in itself if it does not advance the interests of the nation.

Challenges are what make business interesting; overcoming them is what makes it rewarding.

构思得好的东西表达得也清楚，表达的文字也很流畅。