Whether delight is required for happiness?

Objections

Objection 1 : It would seem that delight is not required for happiness. For Augustine says (De Trin. i, 8) that "vision is the entire reward of faith." But the prize or reward of virtue is happiness, as the Philosopher clearly states (Ethic. i, 9). Therefore nothing besides vision is required for happiness.
Objection 2 : Further, happiness is "the most self-sufficient of all goods," as the Philosopher declares (Ethic. i, 7). But that which needs something else is not self-sufficient. Since then the essence of happiness consists in seeing God, as stated above (Question [3], Article [8]); it seems that delight is not necessary for happiness.
Objection 3 : Further, the "operation of bliss or happiness should be unhindered" (Ethic. vii, 13). But delight hinders the operation of the intellect: since it destroys the estimate of prudence (Ethic. vi, 5). Therefore delight is not necessary for happiness.