Amazon recently launched a “Popular Highlights” feature that showcases the book passages underlined by Kindle readers–a 21st Century twist on literary quotation.

So far, the list has been dominated by bestselling books: The Shack by William P. Young, Outliers by Malcolm Gladwell, and The Lost Symbol by Dan Brown.

Here’s more about the program: “AmazonKindle also introduces a “Popular Highlights” feature that identifies the passages that are most highlighted by the millions of Kindle customers. We combine the highlights of all Kindle customers and identify the passages with the most highlights. The resulting Popular Highlights help readers to focus on passages that are meaningful to the greatest number of people.”

After the jump, check out the Most Underlined Passage of All Time (at least since Amazon launched the program).

So far 1,698 Kindle users have underlined this passage from Outliers by Malcolm Gladwell: “three things–autonomy, complexity, and a connection between effort and reward–are, most people agree, the three qualities that work has to have if it is to be satisfying.” (Via Publishers Lunch)