Coroll.), in other words (IV.

xxiv.), who strives to act, to live, and to preserve his being on the basis of seeking his own true advantage; wherefore such an one thinks of nothing less than of death, but his wisdom is a meditation of life.

Q.E.D.
PROP.LXVIII.

If men were born free, they would, so long as they remained free, form no conception of good and evil.
Proof .-- I call free him who is led solely by reason; he, therefore, who is born free, and who remains free, has only adequate ideas; therefore (IV.lxiv.

Coroll.) he has no conception of evil, or consequently (good and evil being correlative) of good.