Aristo of Chios denied that health, and everything similar to it, is a preferred indifferent. To call it a preferred indifferent is equivalent to judging it a good, and different practically in name alone; For without exception things indifferent as between virtue and vice have no difference at all, nor are some of them preferred by nature while others are dispreferred, but in the face of the different circumstances of the occasions, neither those said to be preferred prove to be unconditionally preferred, nor are those said to be dispreferred of necessity dispreferred; For if healthy men had to serve a tyrant and be destroyed for this reason, while the sick had to be released from the service and, therewith also, from destruction, the wise man would rather choose sickness in this circumstance than health.