Cardinal virtues
Augustine of Hippo, discussing the morals of the church, described them:
The "cardinal" virtues are not the same as the three theological virtues: Faith, Hope and Charity (Love), named in 1 Corinthians 13. 
"And now these three remain: faith, hope and love. But the greatest of these is love."
Because of this reference, a group of seven attributes is sometimes listed by adding the four cardinal virtues (prudence, temperance, fortitude, justice) and three theological virtues (faith, hope, charity).
Together, they comprise what is known as the seven virtues. While the first four date back to Greek philosophers and were applicable to all people seeking to live moral lives, the "theological virtues" appear to be specific to Christians as written by Paul in The New Testament.
Aristotelian ethics
Only soldiers can exemplify such virtues because war demands soldiers to exercise disciplined and firm virtues, but war does everything in its power to shatter the virtues it demands. Since virtues are very fragile, they must be practiced always, for if they are not practiced they will weaken and eventually disappear. One who is virtuous has to avoid the enemies of virtue which are indifference or persuasion that something should not be done, self-indulgence or persuasion that something can wait and does not need to be done at that moment, and despair or persuasion that something simply cannot be accomplished anyway. In order for one to be virtuous they must display prudence, temperance, courage, and justice; moreover, they have to display all four of them and not just one or two to be virtuous.