诡辩家往往是明码标价的，而且总问些人们不太喜欢涉及的问题——例如，众神的存在与否。
The Sophists usually charged for instruction and often questioned things that people didn't really want questioned like, for example, the existence of popular deities.
开发者为自己的产品标价，然后从总销售额中提成70%；苹果将获取30%。
Developers name the price of their applications themselves and get 70 percent of the revenue from sales of their apps; Apple gets 30 percent.
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