“Like a father you wish to be, young Obi-Wan?”
“More an… eccentric old uncle, I think. It is a part I can play very well.”
For those curious, this quote is from the Revenge of the Sith novelization. For context, here is the rest of the quote:
“To keep watch over Anakin’s son—” Obi-Wan sighed, finally allowing his face to register a suggestion of his old gentle smile. “I can’t imagine a better way to spend the rest of my life.”