OK, I only "heard" it through a tweet in the Hub, but loved it. From the diversity session: "talent goes where it is welcome" (via @david_ricciardi, @JoanEisenstodt)
Runner up (I may not have gotten this exactly right): The only way to build an organization for the future is to build it for humans." (Gary Hamel, morning keynoter)
He had some other good ones, too:
"Organizations mostly make change like they're taking leadership advice from third-world dictators: chaotically and convulsively."
"Change [should be] opportunity-driven, not crisis-driven."