Former President Barack Obama expressed surprise that he’s accumulated millions of dollars since leaving the White House, but urged those with wealth to give back because there are only so many nice things one can have in life.

“Right now I’m actually surprised by how much money I got,” Obama said Tuesday. “Let me tell you something, I don’t have half as much as most of these folks, or a tenth or a hundredth. There’s only so much you can eat, there’s so big a house you can have. There’s only so many nice trips you can take.”