E2P44D
Demonstration — Part II
Latin
De natura rationis est res vere percipere (per propositionem 41 hujus) nempe (per axioma 6 partis I) ut in se sunt hoc est (per propositionem 29 partis I) non ut contingentes sed ut necessarias. Q.E.D.
English (Elwes 1883)
It is in the nature of reason to perceive things truly (II. xli.), namely (I. Ax. vi.), as they are in themselves--that is (I. xxix.), not as contingent, but as necessary. Q.E.D.