Randall Munroe:

What's more important? Games, or mosquito nets and medicine for kids?

Billy Hoffman:

There is nothing more important than how you spend your time.

Caterina Fake:

Much more important than working hard is knowing how to find the right thing to work on.

Mary Meeker, Scott Devitt, and Liang Wu:

Do humans want everything to be like a game?

Sarah Baxter and Michael Smith:

Obama asked: "What's the endgame?" and did not receive a convincing answer.

John Givings:

Plenty of people are onto the emptiness, but it takes real guts to see the hopelessness.