In this excerpt from ernest hemingway's "in another country," which sentence shows the low self-esteem of the soldiers and their belief that being a soldier has nothing to do with bravery?

the three with the medals were like hunting-hawks; and i was not a hawk, although i might seem a hawk to those who had never hunted; they, the three, knew better and so we drifted apart. but i stayed good friends with the boy who had been wounded his first day at the front, because he would never know now how he would have turned out; so he could never be accepted either, and i liked him because i thought perhaps he would not have turned out to be a hawk either.