Why does Tertullian not accept the weakness of the flesh as an excuse to avoid martyrdom?

Chapter IV From the saying of our Lord we know that the flesh is weak, the spirit willing. Let us not, withal, take delusive comfort from the Lord's acknowledgment of the weakness of the flesh. For precisely on this account He first declared the spirit willing, that He might show which of the two ought to be subject to the other-that the flesh might yield obedience to the spirit-the weaker to the stronger; the former thus from the latter getting strength.

Let the spirit hold converse with the flesh about the common salvation, thinking no longer of the troubles of the prison, but of the wrestle and conflict for which they are the preparation. The flesh, perhaps, will dread the merciless sword, and the lofty cross, and the rage of the wild beasts, and that punishment of the flames, of all most terrible, and all the skill of the executioner in torture. But, on the other side, let the spirit set clearly before both itself and the flesh, how these things, though exceeding painful, have ... more.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.