Whether happiness is an operation of the sensitive part, or of the intellective part only?

❌ Objection 1 : It would seem that happiness consists in an operation of the senses also. For there is no more excellent operation in man than that of the senses, except the intellective operation. But in us the intellective operation depends on the sensitive: since "we cannot understand without a phantasm" (De Anima iii, 7). Therefore happiness consists in an operation of the senses also.

❌ Objection 2 : Further, Boethius says (De Consol. iii) that happiness is "a state made perfect by the aggregate of all good things." But some goods are sensible, which we attain by the operation of the senses. Therefore it seems that the operation of the senses is needed for happiness.

❌ Objection 3 : Further, happiness is the perfect good, as we find proved in Ethic. i, 7: which would not be true, were not man perfected thereby in all his parts. But some parts of the soul are perfected by sensitive operations. Therefore sensitive operation is required for happiness.