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At the close of our studies， we knew all the past of physics， but nothing of the present and the future.

I'm starting with the man in the mirror. I'm asking him to change his ways.

跨越國界和文化的合作是解決全球農業挑戰的關鍵。

The advantages found in history seem to be of three kinds， as they result either from the mere situation of the climate and country or from the form of government and of the character of the people， or from those finer principles and morals， which may be called the recommendations of philosophy.

不好的事情會經常發生。