In "The Gift of the Magi" How does O.Henry define wisdom? O.Henry says of these "two foolish children" that they were "the wisest." I didn't get...

"...These are the wisest," O. Henry says at the short story's end; "They are the magi." He is referring here to Jim and Della, who were wise enough to see past themselves and their own importance to give something of real worth to another. While their actions resulted in unfavorable outcomes for both, the generosity of their selfless giving is what made them "wise" in the opinion of the author.

By story's end, Della had sold her beautiful hair to buy Jim's watch chain, and Jim had likewise sold his treasured watch for Della's hair combs. The situation may have seemed like a stalemate, but in fact, O. Henry tells us that their sacrifices were what made them "wise" or "magi."