译文：凡是一个人要做一件事情，就必须把全部的精神都集中在这件事情上，从开头到结尾都不能松懈，不可以看到别的就改变主意，做着这件事又想着那件事，坐在这座山上又望着那座山。一个人如果没有恒心，一辈子都不会有什么成就。
思想掠过我的心上，如一群野鸭飞过天空。我听见它们鼓翼之声了。
Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.
"Beauty is a form of genius—is higher, indeed, than genius, as it needs no explanation."
The responsibility of agricultural scientists is to make the land produce more grain and let farmers harvest more.