Ernest Hemingway to Martha Gellhorn, after she had gotten hysterical from observing child labor and a bunch of other horrifying things in Hongkong in early 1941 (from Mr Ma's Tigers/Travels With Myself and Another):

"The trouble with you, M., is that you think everybody is exactly like you. What you can't stand, they can't stand. What's hell for you has to be hell for them. How do you know what they feel about their lives? If it was as bad as you think, they'd kill themselves instead of having more kids and setting off fireworks."