Therefore the irascible and concupiscible appetites do not obey reason.

Objection 1: It would seem that the irascible and concupiscible appetites do not obey reason.

For thus thou wilt not fail to obey reason, and thou wilt repose in it.

Whether the irascible and concupiscible appetites obey reason?

But the powers of the vegetal soul do not obey reason, as stated above (A.

Now these do not naturally obey reason; as we can see in the case of any one man.

Therefore, in like manner, neither do the powers of the sensitive appetite, the irascible and concupiscible, obey reason.

Objection 1: It would seem that the members of the body do not obey reason as to their acts.

Hence the very fact that the acts of the vegetal soul do not obey reason, shows that they rank lowest.

But sensuality does not obey reason, wherefore it is signified by the serpent, as Augustine says (De Trin.

He is now sufficiently educated to be docile; he recognises the voice of friendship and he knows how to obey reason.

But the sensitive part of the soul does not obey reason: for we neither hear nor see just when we wish.

But the interior sensitive powers of apprehension obey reason: for the powers of imagination, of cogitation, and of memory [*Cf.

Duty being absolute, truth becomes obligatory, and absolute truth being known by the reason only, to obey the law of duty is to obey reason.

For the sensitive appetite can be the subject of virtue, in so far as it obeys reason.

Good is the passive that obeys Reason.