 Book VII makes the point that pleasures interfere with each other, and so even if all kinds of pleasures are good, it does not follow that all of them are worth choosing. One must make a selection among pleasures by determining which are better. But how is one to make this choice? Book VII does not say, but in Book X, Aristotle holds that the selection of pleasures is not to be made with reference to pleasure itself, but with reference to the activities they accompany.