I am a little chagrined that though I am #2 by total karma, I have only 2 in the bests list. Seems I need to be a little more selective in the future.
You are #2 by karma collected from 2009 to 2013, not just in 2013. You earned an average of 8.20 karma points from 5 quotes in 2013, and an average of 11.05 karma points from 81 quotes in total, which is near to a P-value of 0.5 in my statistical test.
Here is the 2013 edition of the Best of Rationality Quotes collection. (Here is last year's.)
Best of Rationality Quotes 2013 (400kB page, 350 quotes)
and Best of Rationality Quotes 2009-2013 (1600kB page, 1490 quotes)
The page was built by a short script (source code here) from all the LW Rationality Quotes threads so far. (We had such a thread each month since April 2009.) The script collects all comments with karma score 10 or more, and sorts them by score. Replies are not collected, only top-level comments.
As is now usual, I provide various statistics and top-lists based on the data. (Source code for these is also at the above link, see the README.) I added these as comments to the post: