If we design and construct products in such a way that the people who use them achieve their goals, these people will be satisfied, effective, and happy and will gladly pay for the products and recommend that others do the same.

• 即如果我们设计的产品能够让用户达到目标，他们就会感到满意、有效率，并且高兴。还会乐于购买这一产品，并且推荐给他人。