“... he who's down one day can be up the next, unless he really wants to stay in bed, that is...”

“...he spent whole days and nights over his books; and thus with little sleeping and much reading his brains dried up to such a degree that he lost the use of his reason.”

“The cleverest character in comedy is the clown, for he who would make people take him for a fool, must not be one.”

“I am not in the habit', said Don Quixote, 'of despoiling those whom I vanquish, nor is it a custom of chivalry to take their horses and leave them on foot, unless the victor has lost his own horse in the fray, in which case it is legitimate to take the defeated knight's horse, as a prize won in lawful war. And so, Sancho, leave that horse, or donkey, or whatever you want to call it, for as soon as its master sees that we have gone he will return for it.'God knows I'd love to take it', replied Sancho, 'or at least swap it for mine, because I don't think mine's such a good one. These laws of chivalry are really strict, if they won't even stretch to letting you swap one donkey for another - could you please tell me if I can at least swap the tackle?'I am not very clear about that', replied Don Quixote, 'and as it is a doubtful case, I should say that until I am better informed you can swap it, if your need is very great.'It's so great', said Sancho, 'that if I'd wanted the tackle to wear it myself I couldn't have needed it more.'And, now that he'd been granted official permission, he performed his mutatio capparum and refurbished his donkey.”

“In any case, Cide Hamete Benengeli was a very careful historian, and very accurate in all things, as can be clearly seen in the details he relates to us, for although they are trivial and inconsequential, he does not attempt to pass over them in silence; his example could be followed by solemn historians who recount actions so briefly and succinctly that we can barely taste them, and leave behind in the inkwell, through carelessness, malice, or ignorance, the most substantive part of the work.”

“Rocinante felt the desire to pleasure himself with the ladies, and as soon as he picked up their scent he abandoned his natural ways and customs, did not ask permission of his owner, broke into a brisk little trot, and went off to communicate his need to them.”

“Finally, from so little sleeping and so much reading, his brain dried up and he went completely out of his mind.”