This quotation is from Peggy Noonan's column (titled on RealClearPolitics as "The Most Famous Words of the Obama Presidency"):
"From a friend watching the Olympics: 'How about that Michael Phelps? But let's remember he didn't win all those medals, someone else did. After all, he and I swam in public pools, built by state employees using tax dollars. He got training from the USOC, and ate food grown by the Department of Agriculture. He should play fair and share his medals with people like me, who can barely keep my head above water, let alone swim.'
"The note was merry and ironic. And as the games progress, we'll be hearing a lot more of this kind of thing, because President Obama's comment—"You didn't build that"—is the political gift that keeps on giving.
"They are now the most famous words he has said in his presidency. And oh, how he wishes they weren't."