Whether hope and memory causes pleasure?

Objections

Objection 1 : It would seem that memory and hope do not cause pleasure. Because pleasure is caused by present good, as Damascene says (De Fide Orth. ii, 12). But hope and memory regard what is absent: since memory is of the past, and hope of the future. Therefore memory and hope do not cause pleasure.
Objection 2 : Further, the same thing is not the cause of contraries. But hope causes affliction, according to Prov. 13:12: "Hope that is deferred afflicteth the soul." Therefore hope does not cause pleasure.
Objection 3 : Further, just as hope agrees with pleasure in regarding good, so also do desire and love. Therefore hope should not be assigned as a cause of pleasure, any more than desire or love.