A good abstraction is one that captures the essential aspects of a concept while ignoring the irrelevant details.
Systems have sub-systems and sub-systems have sub- systems and so on ad infinitum - which is why we're always starting over.
点燃蜡烛的同时也投下了阴影。
Inflation is a very bold idea, but it seems to be the only way to explain the observed features of the universe.
To collect is to gather things to yourself, to take things from the world and make them part of your own story.
Brand building is the key path to enhance the value of agricultural products.
NHS（英国国家医疗服务体系）是这个国家跳动的心脏。它受到英国人民的喜爱，因为它在最黑暗的时刻为我们服务时表现最佳。
The only person who cannot be helped is that person who blames others.