How can a utilitarian distinguish qualitatively higher pleasures from lesser ones, base ones, unworthy ones? Yes?

功利主义者何以将性质上更高级的快乐,与较低级，基本无价值的区分开呢，请说？

耶鲁公开课 - 公正课程节选

Now, part of the appeal of not making any qualitative distinctions about the worth of people's preferences, part of the appeal is that it is nonjudgmental and egalitarian.

不对人们选择的价值，进行定性区分,其魅力就在于，它是无偏见的，平等主义的。

耶鲁公开课 - 公正课程节选