When you think about Uber and Airbnb and the other companies that are turning things upside down, Uber isn't big 'cause they ran a lot of ads. They're big because someone took out their iPhone and said to their friend, watch this, and pressed a button and a car pulled up.

Perhaps marketing is about to transition to a new kind of profession, one that requires insight, dedication and smarts.

It's more important that you be passionate about what you do all day than it is to be passionate about the product that is being sold.

Instead of focusing on arguing with people who say no, it might be easier to get near the people who like to say yes.

If you're going to invest a valuable asset (like time), go ahead and make it productive. Use a postit or two, or some index cards or a highlighter. Not to write down stuff so you can forget it later, but to create marching orders. It's simple: if three weeks go by and you haven't taken action on what you've written down, you wasted your time.

I think art is the ability to change people with your work, to see things as they are and then create stories, images, and interactions that change the marketplace.

People don't believe what you tell them. They rarely believe what you show them. They often believe what their friends tell them. They always believe what they tell themselves.