“Science sent the Hubble telescope out into space, so it could capture light and the absence thereof, from the very beginning of time. And the telescope really did that. So now we know that there was once absolutely nothing, such a perfect nothing that there wasn't even nothing or once.”

“The problem with thinking up a new and original idea within a novel is that you have to make sure that Kurt Vonnegut did not already think of it.”

“We didn't belong anywhere in particular any more. We were interchangeable parts in the American machine.”

“... going out late at night and laying in the dewy field and reading a Kurt Vonnegut book by moonlight.”

“I thought scientists were going to find out exactly how everything worked, and then make it work better. I fully expected that by the time I was twenty-one, some scientist, maybe my brother, would have taken a colour photograph of God Almighty — and sold it to Popular Mechanics magazine. Scientific truth was going to make us so happy and comfortable.What actually happened when I was twenty-one was that we dropped scientific truth on Hiroshima.”

“I felt after I finished Slaughterhouse-Five that I didn’t have to write at all anymore if I didn’t want to. It was the end of some sort of career. I don’t know why, exactly. I suppose that flowers, when they’re through blooming, have some sort of awareness of some purpose having been served. Flowers didn’t ask to be flowers and I didn’t ask to be me. At the end of Slaughterhouse-Five…I had a shutting-off feeling…that I had done what I was supposed to do and everything was OK .”

“Nothing is generous. New knowledge is a valuable commodity. The more truth we have to work with, the richer we are.”

“The nicest veterans in Schenectady, I thought, the kindest and funniest ones, the ones who hated war the most, were the ones who'd really fought.”

“The mind reels.”

“So, in the interests of survival, they trained themselves to be agreeing machines instead of thinking machines. All their minds had to do was to discover what other people were thinking, and then they thought that, too.”

“The planet was being destroyed by manufacturing processes, and what was being manufactured was lousy, by and large.”