| Quote #1
"Last week he tried to commit suicide," one waiter said.
"Nothing" seems like an inconsequential thing here – but by the end of the story, we see that the concept of nothingness takes on a whole new depth. The nothingness of the world as the older waiter and the old man see it might in fact be a real cause for suicide.
| Quote #2
The old man looked at him. "Another brandy," he said.
The lack of seriousness about death that the younger waiter displays shows his naïveté – at this early stage in his life, death isn't a serious issue, and he's not afraid of it.
| Quote #3
"What did he want to kill himself for?"
This is curious – the older waiter asserts that the old man tried to kill himself "for his soul." We wonder if he might somehow be trying to save his soul by dying, and thus escaping the crushing reality of mortal life.