Whether happiness is an operation?

Objections

Objection 1 : It would seem that happiness is not an operation. For the Apostle says (Rm. 6:22): "You have your fruit unto sanctification, and the end, life everlasting." But life is not an operation, but the very being of living things. Therefore the last end, which is happiness, is not an operation.
Objection 2 : Further, Boethius says (De Consol. iii) that happiness is "a state made perfect by the aggregate of all good things." But state does not indicate operation. Therefore happiness is not an operation.
Objection 3 : Further, happiness signifies something existing in the happy one: since it is man's final perfection. But the meaning of operation does not imply anything existing in the operator, but rather something proceeding therefrom. Therefore happiness is not an operation.
Objection 4 : Further, happiness remains in the happy one. Now operation does not remain, but passes. Therefore happiness is not an operation.
Objection 5 : Further, to one man there is one happiness. But operations are many. Therefore happiness is not an operation.
Objection 6 : Further, happiness is in the happy one uninterruptedly. But human operation is often interrupted; for instance, by sleep, or some other occupation, or by cessation. Therefore happiness is not an operation.