"Your pursuit should always be to remove the unknown from the equation," says CEO David Friedberg. In this clip, Friedberg shares why this is a fundamental premise in building a successful venture. He also teases apart the different roles that risk and uncertainty play in fully understanding a business. 

CEO Phil Libin explains how Evernote creates a great deal of luck by making big bets on which platforms to support. In this amusing and insightful anecdote, Libin tells how Evernote developed their application to work on Apple's iPad by using cardboard cutouts of the device.  

"It wasn't luck, we were just doing things right," asserts Scribd founder Trip Adler. In this clip, Adler explains that luck can come to any entrepreneur who works hard and remains persistent in trying to reach his or her goal.