Thomas Aquinas

“ For in performing deeds of magnificence one needs to have a constant mind. For this reason Tully says that magnificence consists not only in accomplishing great things, but also in discussing them generously in the mind. Constancy may also pertain to perseverance, so that one may be called persevering through not desisting on account of delays, and constant through not desisting on account of any other obstacles. ”

“ Wherefore although magnificence and confidence are referred to the accomplishment of or venturing on any other great things, they have a certain connection with fortitude by reason of the imminent danger.
Reply to Objection 4: Patience endures not only dangers of death, with which fortitude is concerned, without excessive sorrow, but also any other hardships or dangers. In this respect it is accounted a virtue annexed to fortitude: but as referred to dangers of death, it is an integral part thereof. ”

“ Further, Aristotle (Ethic. iii) reckons five parts of fortitude. The first is "civic" fortitude, which produces brave deeds through fear of dishonor or punishment; the second is "military" fortitude, which produces brave deeds as a result of warlike art or experience; the third is the fortitude which produces brave deeds resulting from passion, especially anger; the fourth is the fortitude which makes a man act bravely through being accustomed to overcome; the fifth is the fortitude which makes a man act bravely through being unaccustomed to danger. ”