“Destiny guides our fortunes more favorably than we could have expected. Look there, Sancho Panza, my friend, and see those thirty or so wild giants, with whom I intend to do battle and kill each and all of them, so with their stolen booty we can begin to enrich ourselves. This is nobel, righteous warfare, for it is wonderfully useful to God to have such an evil race wiped from the face of the earth."
"What giants?" Asked Sancho Panza.
"The ones you can see over there," answered his master, "with the huge arms, some of which are very nearly two leagues long."
"Now look, your grace," said Sancho, "what you see over there aren't giants, but windmills, and what seems to be arms are just their sails, that go around in the wind and turn the millstone."
"Obviously," replied Don Quijote, "you don't know much about adventures.”
― Miguel de Cervantes Saavedra, Don Quixote
It's also unknown if Cervantes attended school. This is what Wikipedia said about him. His major work, Don Quixote, considered to be the first modern European novel, is a classic of Western literature, and is regarded amongst the best works of fiction ever written. His influence on the Spanish language has been so great that the language is often called la lengua de Cervantes ("the language of Cervantes"). He was dubbed El Príncipe de los Ingenios ("The Prince of Wits")
Here are some more great quotes from not so great students, but very great writers.
“Finally, from so little sleeping and so much reading, his brain dried up and he went completely out of his mind.”
Miguel de Cervantes Saavedra, Don Quixote
Get your facts first, and then you can distort them as much as you please.
Don't go around saying the world owes you a living. The world owes you nothing. It was here first.
I have never let my schooling interfere with my education. MARK TWAIN
An archaeologist is the best husband a woman can have. The older she gets the more interested he is in her.
It is a curious thought, but it is only when you see people looking ridiculous that you realize just how much you love them.
The best time to plan a book is while you're doing the dishes. AGATHA CHRISTIE
It is better to fail in originality than to succeed in imitation.
Better sleep with a sober cannibal than a drunken Christian. HERMAN MELVILLE