this was the first time that he thoroughly felt and believed himself to be a knight-errant in reality and not merely in fancy, now that he saw himsel… - Miguel de Cervantes

In short, our gentleman became so caught up in reading that he spent his nights reading from dusk till dawn and his days reading from sunrise to sunset, and so with too little sleep and too much reading his brains dried up, causing him to lose his mind.

Ni todos los que se llaman caballeros lo son de todo en todo: que unos son de oro, otros de alquimia, y todos parecen caballeros, pero no todos pueden estar al toque de la piedra de la verdad.

He has done like Orbaneja, the painter of Ubeda, who, being asked what he painted, answered, "Whatever it may turn out." And if he chanced to paint a cock, he wrote under it, "This is a cock," lest the people should take it for a fox.