"I do say so, about a great many things. Many things you really should take to heart more, I'm rather brilliant, I've lived over a millennia, seen plenty of things, and have wonderful advice. Such as always have a bowtie at hand, it's always classy. And that you should always swim one hour before you eat... I don't know how humans always got that wrong."
Waving it off he then frowned, staring at her a bit, "Of course it's good. You seem very unenthusiastic about it Clara, it's a brilliant book. Full of, well, me. It's really my life--or The Doctor's life--or well yes, that life in the book. Not Troy's that life's not really book material; I suppose it'll likely be made into a movie after my book becomes famous. Who would play me in the movie of Troy Handsome?"
He then smiled looking down at her, "So, if I may, I think that after my book is published I shall quit from teaching. Too boring, all that standing around and talking, I should explore. The world, if necessary, but the universe preferably... oh so many wonders to see. Wonders I've yet to see."