The phrase "reserves of courage" is correct and can be used in written English.
It is usually used to refer to a person's internal strength or courage that they can draw on in difficult or trying times. For example, "After suffering a setback at work, she drew on her reserves of courage and kept going."
Fry underwent a transformation, discovering reserves of courage and energy in himself that he never knew existed.
It should be the simplest of choices, a capstone to the life of a good but at times contradictory man who, presented with an ultimate dilemma, simply draws upon his enormous reserves of courage.
Transformed by their experiences, these men and women often found within themselves unknown reserves of courage and discovered a common ground of humanity as they shared their hopes and fears with loved ones back home.
To emerge triumphant at the end of that, they had to call on great reserves of courage and stamina – what the Georgians admiringly called 'bottom.' During the winter and spring of 1768 and 1769, as Eclipse enters his fifth year, he begins to be subjected to an ever harsher training regime.
There comes a stage in every budding romance when a God-fearing Englishman must stiffen the sinews, summon up deep reserves of courage, and introduce his new girlfriend to that precious group of people who monopolise the lion's share of his waking hours: his workmates.
Yet while the purpose of Evin is to make her and all women infants - her interrogator calls her "little girl" - she discovers in her ordeal reserves of courage that more than justify her family name (which means "hero" or "champion" in Persian).
For Italy to succeed, its squabbling politicians must find unaccustomed reserves of unity and courage.
Thewlis paints a lovely portrait of courage and English reserve, and Aris's selfless devotion to his wife does translate into a few moving minutes towards the end.
I had been in Bologna for nearly a week and, drawing on all of my French and Spanish reserves, as well as a heavy dose of courage, I had begun to piece together sentences and then short conversation.
" 'The Red Badge of Courage,' " he said.
It also contains many tales of courage.
