lxi.), and not from pain; wherefore this desire springs from the knowledge of good, not of evil (IV.

viii.); hence under the guidance of reason we seek good directly and only by implication shun evil.

Q.E.D.
Note .-- This Corollary may be illustrated by the example of a sick and a healthy man.

The sick man through fear of death eats what he naturally shrinks from, but the healthy man takes pleasure in his food, and thus gets a better enjoyment out of life, than if he were in fear of death, and desired directly to avoid it.

So a judge, who condemns a criminal to death, not from hatred or anger but from love of the public well--being, is guided solely by reason.
PROP.LXIV.