"Scott Griffith, CEO of Zipcar. He has taken an early-stage startup all the way through IPO. He's seen everything. Those are the types of mentors that I lean on when I'm making big, strategic decisions."
Leah Busque, CEO, TaskRabbit 
"I do improv comedy. My improv only got better when I took the focus off myself and looked to the other people onstage. I had to make their contributions amazing. As a leader, you try to get out of the way of the people who make contributions--and then be there to shine a light on the best parts."
Jeff Greenspan, chief creative officer, BuzzFeed 
"Celebrate impatience. I read somewhere that patience is the art of pretending you're not impatient. But forget about that. Be an example and let your impatience show. It's a way to express the passion--that fire in the belly--for what you do."
Ursula Burns, CEO, Xerox 
[Illustrations by Joel Kimmel]