Unforgetably impressive. There's no paying off the debt owed to him and people like him. My father-in-law spent the last few months in Dachau after being wounded in the Bulge. He used to get an association publication from a group of Dachau survivors; we have one to remind us of his sacrifices. My dad served in the Pacific in the Navy; he never spoke much about his experiences of war. But my brother and I found some photographs in a chest of drawers that we were forbidden to open and neither of us can forget them to this day. No doubt it was the seed that, ultimately made me a professional historian. We were young then, and in that, unaware, unknowing, and yes, maybe unworthy being unable to comprehend the magnitude of what we saw.
We're older now and as to that unworthy part, well at least for me, if I could even convey this to my dad and he understood: If I'm ever half the man he was and is it will be the zenith of my accomplishments.