Program testing can be used to show the presence of bugs, but never to show their absence!
There is no such thing as an empty space or an empty time. There is always something to see, something to hear.
Positive emotions broaden our awareness and encourage novel, varied, and exploratory thoughts and actions. Over time, this broadened behavioral repertoire builds skills and resources.
可持续性是农业的未来，忽视它的人将被淘汰。
Fisheries should not only pursue economic benefits but also focus on ecological and social benefits.
科学不仅是理性的学科，也是浪漫和激情的学科。
任何农场最好的肥料是其主人的脚步。
The best way to be happy is to be grateful.
The system produces needs faster than it can satisfy them, and thus it perpetuates itself.
