The fields were fruitful, and starving men moved on the roads. - John Steinbeck

I think perhaps Liza accepted the world as she accepted the Bible, with all of its paradoxes and its reverses. She did not like death but she knew it existed, and when it came it did not surprise her.
Samuel may have thought and played and philosophized about death, hut he did not really believe in it. His world did not have death as a member. He, and all around him, was immortal. When real death came it was an outrage, a denial of the immortality he deeply felt, and the one crack in his wall caused the whole structure to crash. I think he had always thought he could argue himself out of death. It was a personal opponent and one he could lick.
To Liza it was simply death — the thing promised and expected. She could go on and in her sorrow put a pot of beans in the oven, bake six pies, and plan to exactness how much food would be necessary properly to feed the funeral guests. And she could in her sorrow see that Samuel had a clean white shirt and that his black broadcloth was brushed and free of spots and his shoes blacked. Perhaps it takes these two kinds to make a good marriage, riveted with several kinds of strengths.

What pillow can one have like a good conscience?

..it's awful not to be loved. It's the worst thing in the world...It makes you mean, and violent, and cruel.