I find it very hard to pick out short quotes from the Holy Father -he always says so much I'd end up cutting and pasting everything- so I'm not going to! Instead, do have a look at the transcripts, and the amazingly busy schedule he is following if you haven't already.
EWTN has complete coverage of the visit, as does The Catholic Herald.
Transcripts of the Holy Father's visit can also be found here on the Vatican site. The link for photos is also there, but not active yet.