In this great six-minute video from TED U, Joachim de Posada talks about a child's ability to delay gratification and how it can predict future success.
The results of this semi-famous, Stanford Marshmallow Study which Posada refers to, are pretty amazing. (Posada also wrote a self-help book about it, Don't Eat the Marshmallow Yet! It's a great, quick read.)
The video below includes priceless closeups of kids eating marshmallows. Here's the video: