You don't die enough to cry.

"Actually, Billy’s outward listlessness was a screen. The listlessness concealed a mind which was fizzing and flashing thrillingly. It was preparing letters and lectures about the flying saucers, the negligibility of death, and the true nature of time."

"The city was blacked out because bombers might come, so Billy didn’t get to see Dresden do one of the most cheerful things a city is capable of doing when the sun goes down, which is to wink its lights on one by one."

"In the next moment, Billy Pilgrim is dead. So it goes.
So Billy experiences death for a while. It is simply violet light and a hum. There isn’t anybody else there. Not even Billy Pilgrim is there."

"‘So-’ said Billy gropingly, ‘I suppose that the idea of preventing war on Earth is stupid, too.’
‘Of course.’
‘But you do have a peaceful planet here.’
‘Today we do. On other days we have wars as horrible as any you’ve ever seen or read about. There isn’t anything we can do about them, so we simply don’t look at them. We ignore them. We spend eternity looking at pleasant moments - like today at the zoo. Isn’t this a nice moment?’
‘Yes.’
‘That’s one thing Earthlings might learn to do, if they tried hard enough: Ignore the awful times, and concentrate on the good ones.’
‘Um,’ said Billy Pilgrim."

"He changed the subject now, congratulated Valencia on her engagement ring.
‘Thank you,’ she said, and held it out so Rosewater could get a close look. ‘Billy got that diamond in the war.’
‘That’s the attractive thing about war,’ said Rosewater. ‘Absolutely everybody gets a little something.’"

"One thing Trout said that Rosewater liked very much was that there really were vampires and werewolves and goblins and angels and so on, but that they were in the fourth dimension. So was William Blake, Rosewater’s favorite poet, according to Trout. So were heaven and hell."

"‘The most important thing I learned on Tralfamadore was that when a person dies he only appears to die. He is still very much alive in the past, so it is very silly for people to cry at his funeral. All moments, past, present, and future, always have existed, always will exist. The Tralfamadorians can look at all the different mountains just the way we can look at a stretch of the Rocky Mountains, for instance. They can see how permanent all the moments are, and they can look at any moment that interests them. It is just an illusion we have here on Earth that one moment follows another one, like beads on a string, and that once a moment is gone it is gone forever.
When a Tralfamadorian sees a corpse, all he thinks is that the dead person is in bad condition in that particular moment, but that the same person is just fine in plenty of other moments. Now, when I myself hear that somebody is dead, I simply shrug and say what the Tralfamadorians say about dead people, which is ‘So it goes.’ ‘"