I read Mere Christianity, or at least parts of it earlier this year, and these were some favorite parts. I obviously didn't read much of it. I found it to be very enjoyable, but I kept falling asleep. I think that says more about me than the book. :)
Favorite bits and bobs of this book
"We might think that God wanted simply obedience to a set of rules: whereas He really wants people of a particular sort."
"As Dr Johnson said, 'People need to be reminded more often than they need to be instructed." -on morality