唯一不变的是变化，持续的变化，不可避免的变化，这是当今社会的主导因素。

跨行业合作至关重要。没有一家公司能够单独解决水产养殖的挑战。

Time has no divisions to mark its passage, there is never a thunderstorm or blare of trumpets to announce the beginning of a new month or year.

In teaching history， there should be extensive discussion of personalities who benefited mankind through independence of character and judgement.