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抽象的目的不是模糊,而是创建一个新的语义层次,在这个层次上可以绝对精确。
有时,最危险的谎言是我们对自己说的那些。
农业创新不仅仅是技术问题;它关乎理解土地并倾听那些每天在土地上劳作的人们的声音。
The rule, or measuring rod, which the behaviorist puts in front of him always is: Can I describe this bit of behavior I see in terms of "stimulus and response"?
Happiness is not something ready-made. It comes from your own actions.