I watched an old movie last night, in which a British and a German soldier fought a sabre duel, then the Brit grew a moustache to hide his scar, and the German changed his hairstyle to show off his scar. The two soldiers became good friends despite two world wars between their countries. They both loved the same girl, but she died (Deborah Kerr), and all their lives, the two men got to know women who looked like the woman they had loved. Kerr played all of the women!
Pretty cool for an ancient movie. Symbolism of scars, like your poem here!
The first three lines are quite riveting and really capture the attention. I have nothing but praise for these three. However, I'm not sure where you're coming from with the admiration, except that maybe if you see someone who is heavily scarred, you might admire them for having survived whatever it was that marked them. Perhaps this could be elaborated on.
The other lingering confusion I have is with your meaning on a whole. Scars do not depart. They are the one thing that remains when the source of injury has gone. They may fade, but a scar is not truly a scar if it goes away. Perhaps a scar is made without conscience, and continues to exist as a reminder, even if one is not wanted. In this way a scar is without conscience. It is something inanimate superimposed upon something animate, or maybe inside it.