Grit might be one of the most important factors when it comes to success. Author Jonah Lehrer explores this subject in his terrific article in the "Ideas" section of the Boston Globe. Lehrer writes that grit is "about setting a specific long-term goal and doing whatever it takes until the goal has been reached. It’s always much easier to give up, but people with grit can keep going." How is your grit quotient? Measure your grit level here.