把这一句，留给此刻的你

Not offering this kind of guarantee means that they do not believe in their product enough, and they do not care about if a salesman is over promising or over selling their product.

不提供这样的保证意味着他们对自己的产品没有足够的信心，他们不关心销售人员是否过度承诺或过度销售他们的产品。

— Matthew Lesko 马修·莱斯科