Lots of great dialogue in the movie and I think it will stick around for years to come. Here are some I find myself playing back:
"Han Solo. I've been waiting for this day for a long time."
"Goodness! Han Solo! It is I C-3PO. You probably didn't recognize me because of the red arm..." (I love the annoyed expression Han gives Threepio. Took me right back to ESB)
"You need a pilot..." "...I need a pilot."
"Show me, grandfather, and I will finish what you started."
"What did you do when you were stationed here?" "Sanitation." "SANITATION!"
"Solo, we'll figure it out. We'll use the Force!" "That's not how the Force works!"