Who told you that the courage is a virtue? How do you know that the courage is a virtue?
When somebody follows the dhamma, it is more about energy and diligence, being steadfast on the dhamma which counts. Courage is a word which means being faithful to one's principles, to owns heart, but of course, for the dhamma it means faithful to the dhamma, not some moronic wrong view invented by some puthujjanas... so it is a good word in a text like this:
Now I said:
"It is in time of distress that a man's courage[8] is to be
understood, and that too after a long time, not casually; by close
attention, not by inattention; by a wise man, not by one weak in
wisdom."
Owing to what did I say this?
[198] In this case, monks, a certain one, afflicted by the loss of
relatives or loss of wealth or by the misfortune of sickness, thus
reflects:
Verily thus-come-to-be is this living in the world.
Thus-come-to-be is the getting of a personality.
According to this coming-to-be of living in the world and getting a
personality eight world-conditions keep the world a-rolling and the
world keeps a-rolling eight world-conditions, to wit: - gain and loss,
disrepute and fame, blame and praise, happiness and unhappiness.
So he, afflicted by loss of relatives, loss of wealth or the
misfortune of sickness, sorrows, laments, is distressed and knocks the
breast, wails and falls into utter bewilderment.
But in this case, monks, a certain one, afflicted by the loss of
relatives or loss of wealth or by the misfortune of sickness, thus
reflects:
Verily thus-come-to-be is this living in the world.
Thus-come-to-be is the getting of a personality.
According to this coming-to-be of living in the world and getting a
personality eight world-conditions keep the world a-rolling and the
world keeps a-rolling eight world-conditions, to wit: - gain and loss,
disrepute and fame, blame and praise, happiness and unhappiness.
He, afflicted by the loss of relatives, loss of wealth or the
misfortune of sickness, does not sorrow, does not falter,[ed1] . . .
nor falls into utter bewilderment.
Owing to that did I say this.
http://obo.genaud.net/dhamma-vinaya/pts/an/04_fours/an04.192.wood.pts.htm
People love the idea that courage is more about a physical ability, but that's because their mind is weak.