E4P67D
Demonstration — Part IV
Latin
Homo liber hoc est qui ex solo rationis dictamine vivit, mortis metu non ducitur (per propositionem 63 hujus) sed bonum directe cupit (per corollarium ejusdem propositionis) hoc est (per propositionem 24 hujus) agere, vivere, suum esse conservare ex fundamento proprium utile quærendi atque adeo nihil minus quam de morte cogitat sed ejus sapientia vitæ est meditatio. Q.E.D.
English (Elwes 1883)
A free man is one who lives under the guidance of reason, who is not led by fear (IV. lxiii.), but who directly desires that which is good (IV. lxiii. 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.
Modern English
A free man — that is, one who lives solely under the dictates of reason — is not led by fear of death (E4P63) but directly desires the good (E4P63C), that is (E4P24), desires to act, to live, to preserve his being, on the foundation of seeking what is truly useful to himself. Therefore he thinks of nothing less than death, and his wisdom is a meditation on life. Q.E.D.