Time has its "Person of the Year." Amazon has its books of the year. Pretty Much Amazing has its mixtapes of the year. Buzzfeed has its insane-stories-from-Florida of the year. And Wonkblog, of course, has its graphs of the year. For 2013, we asked some of the year's most interesting, important and influential thinkers to name their favorite graph of the year — and why they chose it. Here's Peter Thiel's.

Knowledge may be priceless, but a higher education is clearly not. University administrators keep hiking tuition, the wages of graduates keep falling, and a whole generation of Americans is struggling under the crushing burden of debt as they postpone their dreams for a tomorrow that may never come.

Peter Thiel co-founded PayPal and is now a venture capitalist with Mithril and Founders Fund. He also grants fellowships to young people who undertake projects in lieu of going to college.

See all the graphs of 2013 here, including entries from Bill Gates, Jonathan Franzen, Patty Murray, Tyler Cowen, Bill McKibben, Emily Oster, Ta-Nehisi Coates, Brian Greene, Chuck Schumer, Chris Hayes, Jason Furman, and Ron Wyden.