“He was a very private person, and sometimes it seemed to me that he was no longer interested in the world or in other people... I got the feeling that Julián was living in the past, locked in his memories. Julián lived within himself, for his books and inside them - a comfortable prison of his own design.""You say this as if you envied him.""There are worse prisons than words.”

“You know," he went on almost under his breath, "every man who thinks for himself and feels vividly finds he lives in a world of his own, apart, and believes that one day he'll come across, either in a book or in a person, the Priest who shall make it clear to him.”

“[W]hen I put Jorge in the library I did not yet know he was the murderer. He acted on his own, so to speak. And it must not be thought that this is an 'idealistic' position, as if I were saying that the characters have an autonomous life and the author, in a kind of trance, makes them behave as they themselves direct him. That kind of nonsense belongs in term papers. The fact is that the characters are obliged to act according to the laws of the world in which they live. In other words, the narrator is the prisoner of his own premises.”

“If industrial man continues to multiply his numbers and expand his operations he will succeed in his apparent intention, to seal himself off from the natural and isolate himself within a synthetic prison of his own making.”

“A person can carry his own persecutor, his own prison, about with him, Monseigneur. He can - as you know - die of thirst even when he has the clearest water within his reach. To be free...not to be free...it is all relative. No one has to drag along more ballast than he wants to and he who allows himself to be bound is a fool. The biggest fools are those who wear shackles of cobwebs and believe themselves to be helpless.”

“That's for the best. Otherwise they might realize they're in prison. It can't be helped. You women are used to harems and prisons. A person can spend his whole life between four walls. If he doesn't think or feel that he's a prisoner, then he's not a prisoner. But then there are people for whom the whole planet is a prison, who see the infinite expanse of the universe, the millions of stars and galaxies that remain forever inaccessible to them. And that awareness makes them the greatest prisoners of time and space.”