Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.
量子理论是一个绝佳的例子,展示了理论如何既奇特又真实。
渔业的未来在于与海洋生态系统的和谐共处。
林业不是开采,而是按照自然时间尺度进行的培育。