What do Elizabeth and Darcy say to each other on their long walk what has learned from the other?

Elizabeth: "Mr. Darcy, I must confess that I have been very much mistaken in my opinion of you. I have been prejudiced against you, and I am ashamed of myself for it. You are not at all the proud and arrogant man that I thought you were. You are kind and generous and you are the only person who has ever truly understood me."

Darcy: "Miss Elizabeth, I am so glad that you have come to see the truth about me. I have always been drawn to you, but I was too proud to admit it. I am in love with you Elizabeth and would be honored if you would marry me."

What they have learned from each other:

Elizabeth: Elizabeth has learned that Darcy is not as proud and arrogant as she thought he was. He is actually a kind and generous man who has been hurt in the past. She has learned to let go of her prejudices and to see people for who they really are.

Darcy: Darcy has learned that he doesn't need to be proud and arrogant to be respected. He can be himself and still be loved. He has learned to be more open and honest with his feelings.