Is it sad that I found this adorable?
Winterfell’s not in the South," Jon objected.
“Yes it is. Everything below the Wall’s south to us.”
He had never thought of it that way. “I suppose it’s all in where you’re standing.”
“Aye,” Ygritte agreed. “It always is.
Jon - A Clash of Kings
In which Jon Snow takes an enemy captive, and immediately proceeds to listen to one of her folk tales and see things from her perspective
"You know nothing, Jon Snow" isn’t just a funny meme about Jon being stupid. It’s Ygritte telling him he doesn’t know things, and Jon caring enough to learn, and to incorporate what he learns into his worldview. Jon’s one of the few men in Westeros to consider what a woman would think/do before he makes decisions. This happens all throughout his chapters in ADWD, where he talks to her in his head. "They know nothing, Ygritte. And worse, they will not learn."