It is vain to talk of the interest of the community， without understanding what is the interest of the individual.
实现明天理想的唯一限制是我们今天的疑虑。
空间是一种物质。
We must decouple economic growth from environmental degradation.
Don't cry， I'm sorry， you must understand， I am sorry to deceive you so much， but this is life.
The future of food depends on how we treat our soil today.
政治活动与其说是将普遍原则应用于特定情况，不如说是探索这些情况是什么。