Optimists tend to interpret their troubles as transient, controllable, and specific to one situation. Pessimists, on the other hand, believe that their troubles last forever, undermine everything they do, and are uncontrollable.
乐观主义者倾向于将他们的麻烦解释为暂时的、可控的和特定于一种情况的。另一方面,悲观主义者认为他们的麻烦会永远存在,破坏他们所做的一切,并且无法控制。
"Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful."
判断两个λ表达式是否等价的问题是无法解决的。
Technology should serve agriculture, not the other way around.
网球是一项心理游戏。每个人都健康,每个人都打出很棒的正手和反手——重要的是头脑。