Final answer:
Don Quixote was inspired to become a knight from reading chivalric romances, leading to his misguided adventures while attempting to imitate his literary heroes.
Step-by-step explanation:
Don Quixote got his idea of knighthood from reading many books of chivalric romances, which inspired him to become a knight-errant. His delusions and his belief in courtly love and social justice led to his adventures where he often mistook the ordinary for the extraordinary—like when he attacked windmills thinking they were giants. These books shaped his view of the world and led him on a quest to revive the golden age of chivalry, despite the disconnect between his fantasies and the realities of 17th-century Spain.