The Gestalt principles of organization are fundamental to understanding how we perceive the world around us.
循环经济不仅仅是一个理想；它是我们行业的必需品。
The universe would look to a two-dimensional creature who spend its life moving on the service of what turned out to be a globe， it could travel for millions of years and would always return to its starting point， it would never be conscious of what was above it or beneath it.
物理学家必须有一种信念，即宇宙是由理性且可理解的规律所支配的。