What are some quotes which deal with fate and free will in Never Let Me Go?

“We all know it. We’re modelled from trash. Junkies, prostitutes, winos, tramps. Convicts, maybe, just so long as they aren’t psychos. That’s what we come from. We all know it, so why don’t we say it?”

Ruth, Page 166

Ishiguro uses the clone's origins as an opportunity to explore questions of self-knowledge and free will. The clones become fixated on finding their 'originals' because they believe that it will offer them insight into their personalities and their futures. However, they are conflicted about whether they actually want to know their origins because as Ruth says, "clone models" are often somehow undesirable. Ruth and Tommy ruminate frequently about whether finding one's original is actually worthwhile, raising questions of whether a person's fate is determined by their birth or by their choices.