过去是一个跟随我们的影子，但它不必定义我们。
"The past is a shadow that follows us, but it does not have to define us."
The environment is a long-term issue that requires long-term commitment.
We are all bound by the social contract to obey the laws， but we also have the right to participate in making those laws.
我不是说唱歌手，我是一个打破纪录的人。
