First, it may be indifference to danger, whether proceeding from the organism of the individual, contempt of death, or habit: in any of these cases it is to be regarded as a permanent condition.
Secondly, courage may proceed from positive motives, such as personal pride, patriotism, enthusiasm of any kind.

In this case courage is not so much a normal condition as an impulse.
We may conceive that the two kinds act differently.

The first kind is more certain, because it has become a second nature, never forsakes the man; the second often leads him farther.

In the first there is more of firmness, in the second, of boldness.

The first leaves the judgment cooler, the second raises its power at times, but often bewilders it.
The two combined make up the most perfect kind of courage.
War is the province of physical exertion and suffering.