. -- littleitzer butterings of humanity, it's still kind of hard to see humanity as a whole in that situationif you could have humanity in degrees. there are degrees to which people view humanity. >> what people also learned is that slavery is not looked upon as a great or cool enterprise. it was looked down on by a lot of people, but it was also the oft lucrative. it was kind mind blowing. on the one hand people say it is such a arable business. what do you say to that? great a is they have so much stuff in their vault. i would love to run through the hallways. they have everything in there. every now and then they open up the vault. this is a three part series. there are two other parts. if you haven't seen them, i am sure you can go online. ends talkinges about the pathway to freedom. coming up, a conversation with "dilbert" creator scott adams. stay with us. "dilbert" is without question one of the most successful syndicated comic strips. it is appearing in 70 countries and 25 languages. says yourt creator learn more from failure than success. he has written a new book with the title "how