The past is always a rebuke to the present.

水产养殖的未来在于平衡生态健康与经济可行性。

 人类的理解一旦采纳了一个观点，就会倾向于将其他事物引向支持和一致。

The history of all hitherto existing society is the history of class struggles.

Every age has its pleasures, its style of wit, and its own ways.

写歌就是我的心理治疗。