Efficiency and ethics must go hand in hand in modern agriculture.

译文：不肯向优秀的人学习，这便是失败的原因了。

人的精神比单纯的体力更重要，人中的精神火花可以被扇成火焰。

The health of our oceans reflects the health of our planet. We must act now to protect both.

幸福通过美德获得；它是人通过自己的意志获得的美好。

You have to spend some energy and effort to see the beauty of math.

我不是演唱会，我是歌剧。