只知道自己的一面的人对那面了解甚微。
The impact of unions on wages and employment is often misunderstood.
A human being needs to suffercWhen one suffers， one becomes strong.
"The goal of mathematics is to understand the universe."
The world is a very malleable place if you know what you want.
了解这个世界就是爱它，而爱它就是为它哀伤。
林业的短期收益往往会导致地球的长期损失。