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The Eskimos had fifty-two names for snow because it was important to them: there ought to be as many for love.
"Books are the keys to the universe."
Collaboration and sharing of knowledge are essential for the advancement of science.
你和我各有一个苹果,如果我们交换苹果的话,我们还是只有一个苹果。但当你和我各有一个想法,我们交换想法的话,我们就都有两个想法了。
在采矿业中,效率和环境保护必须齐头并进。