If you meddle in other people's marriages you may lose a friend, but acquire his wife.
要是你干涉别人的婚姻，你可能失去一个朋友，但却得到他的妻子。
"History is not the past but a map of the past, drawn from a particular point of view, to be useful to the modern traveller."
农业创新不仅仅是技术问题；它关乎改变思维方式，为子孙后代培育土地。
"Sometimes, you have to look back in order to understand the things that lie ahead."
A proof of a proposition is a process the nature of which is such as to produce in us a belief in that proposition.