Be thankful for what you have; you’ll end up having more.
If you concentrate on what you don’t have, you will never, ever have enough.
对于你所拥有的，要心存感激，这样你就会拥有更多。
对于你所没有的，如果念念不忘，你永远都不会满足。
Experience is the mother of science.
经验是科学之母。
Science is a wonderful thing if one does not have to earn one’s living at it. (Albert Einstein, American Physical Scientist)
不以科学为生，科学就是美好的。 (美国物理学家阿尔伯特·爱因斯坦)
