HIPPIAS: Yes.
SOCRATES: And is not blinking a defect in the eyes?
HIPPIAS: Yes.
SOCRATES: And would you rather always have eyes with which you might voluntarily blink and not see, or with which you might involuntarily blink?
HIPPIAS: I would rather have eyes which voluntarily blink.
SOCRATES: Then in your own case you deem that which voluntarily acts ill, better than that which involuntarily acts ill?
HIPPIAS: Yes, certainly, in cases such as you mention.
SOCRATES: And does not the same hold of ears, nostrils, mouth, and of all the senses—those which involuntarily act ill are not to be desired, as being defective; and those which voluntarily act ill are to be desired as being good?
HIPPIAS: I agree.
SOCRATES: And what would you say of instruments;—which are the better sort of instruments to have to do with?—those with which a man acts ill voluntarily or involuntarily? For example, had a man better have a rudder with which he will steer ill, voluntarily or involuntarily?