Marceline Loridan-Ivens said this quote

To everyone in the foyer reading the lists, or on the sidewalks waving signs and photos of their families who’d disappeared, I said over and over again: “Everyone is dead.” If they insisted, showing me family photos, I’d calmly say: “Were there any children? Not a single child will come back.” I didn’t mince my words, I didn’t try to spare their feelings, I was used to death. I’d become as hard-hearted as the deportees who saw us arrive at Birkenau without saying a single comforting word. Surviving makes other people’s tears unbearable. You might drown in them.