Since hope regards a possible good, there arises in man a twofold movement of hope; for a thing may be possible to him in two ways, viz. by his own power, or by another's. Accordingly when a man hopes to obtain something by his own power, he is not said to wait for it, but simply to hope for it.
 Thomas Aquinas, Summa Theologica (1274). copy citation

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Author Thomas Aquinas
Source Summa Theologica
Topic power hope
Date 1274
Language English
Reference
Note Translated by Fathers of the English Dominican Province
Weblink http://www.gutenberg.org/cache/epub/17897/pg17897-images.html

Context

“And accordingly hope is a movement of the appetitive power ensuing from the apprehension of a future good, difficult but possible to obtain; namely, a stretching forth of the appetite to such a good. Reply Obj. 1: Since hope regards a possible good, there arises in man a twofold movement of hope; for a thing may be possible to him in two ways, viz. by his own power, or by another's. Accordingly when a man hopes to obtain something by his own power, he is not said to wait for it, but simply to hope for it. But, properly speaking, he is said to await that which he hopes to get by another's help, as though to await (exspectare) implied keeping one's eyes on another (ex alio spectare) , in so far as the apprehensive power, by going ahead, not only keeps its eye on the good which man intends to get, but also on the thing by whose power he hopes to get it;” source