What you actually pay for something is at least twice the listed price because of the energy， time， money needed to set it up， learn， maintain， repair， and dispose of at the end. Not all prices appear on labels. Actual costs are 2x listed prices.
最好的解决方案往往来自那些与动物最亲近的人。
做出伟大工作的唯一途径是热爱你所做的事。
Passion is universal humanity. Without it religion, history, romance and art would be useless.