now david brooks looks at how our unconscious mind shifts are character, intelligence, and biases. this is just under an hour. it is a great pleasure to be here. more or less in my hometown. i went to the high-school about 13 miles west of here, and so it is always good to be back home in this area. because i know philadelphia and its, i know you did not come to hear me speak. you came here to hear your help yourself speak. [laughter] i will try to be brief. get out of your way. it is a pleasure to be back. try to think of what my high-school teachers around here would have said. i was not a big man. i was actually stuffed into lockers by big man. tom wilson who played biff in the back to the future movies, and another one was just warming who chases tornadoes and was one of the subjects of the movie twister years ago. so they went on to lead exciting lives, and i went on to talk. [laughter] now, a lot of the people i talk with our politicians. so when i was given my cu