The more we learn of the true nature of non-human animals, especially those with complex brains and corresponding complex social behaviour, the more ethical concerns are raised regarding their use in the service of man—whether this be in entertainment, as ‘pets,’ for food, in research laboratories or any of the other uses to which we subject them.
Every challenge in agriculture presents an opportunity to learn and grow.
衣食是人们活着的时候所需要的利益,尚且要有一定的节制;埋葬是人们死后所需要的利益,为什么就单单在这里没有节制呢? 
地球是一个动态的行星,其内部热量是地质变化的驱动力。
Your work is going to fill a large part of your life, and the only way to be truly satisfied is to do what you believe is great work.
The good life is using your signature strengths every day to produce authentic happiness and abundant gratification.