"Thus faith can have no mean or extremes in the point of trusting to the First Truth [(in hoc quod innitatur primae veritati, in this, that it leans upon the First Truth)], in which it is impossible to trust too much; whereas on the part of the things believed [(ex parte eorum quae credit)], it may have a mean and extremes; for instance one truth is a mean between two falsehoods. So too, hope has no mean or extremes, as regards its principal object [(ex parte principalis obiecti)], since it is impossible to trust too much in the Divine assistance; yet it may have a mean and extremes, as regards those things a man trusts to obtain [(quantum ad ea quae confidit aliquis se adepturum, with respect to the things that a man trusts himself to obtain)], insofar as he either presumes above his [(suam)] capability, or despairs of things of which he [(sibi)] is capable."
St. Thomas Aquinas, Summa theologiae II-II.17.5.Resp., trans. FEDP (i.e. Shapcote). "It is impossible to trust too much in" God's ability to "lead [us] to an infinite good", i.e. "eternal life, which consists in the enjoyment of God himself" (17.2.Resp.: "we should hope from Him for nothing less than Himself"), as well as the "other things . . . for which we pray to God, . . . secondarily and as referred to eternal happiness" (ad 2).
