prof. appiah: the central question in ethics is what is a good life. one perspective on that question is to ask yourself, looking back, towards the end of my life, how will i evaluate myself, how will i think about the value of my life, will i think it has been a meaningful life which i have achieved things worth achieving, helped people worth helping. there is no guarane th a person who is doing the right thing will necessarily have a large amount of pleasure in their life but what they will have is deep satisfaction that comes to a moral person from knowing they have done or tried to do what was right. terre: trying to do what was right, for some that is as easy as making a pledge. and what a pledge, that is next on "big problems/big thinkers." warren: i could take all my money and do what they used to do in egypt, i could use it to build the biggest tomb ever built, that strikes me as crazy. ms. albright: there is a sense that you are put in this place to do good for people. you should try to d

prof. appiah: thinking about that gives me a feeling of elevation. a man who could have done nothing at all for the public good. he is under no legal obligation. but he chose to do something very productive. and self-effacing in a way. we should honor people like that. the more we honor people like that, the more it seems natural for people to do that and then ordinary people like myself who do not have billions will spend more time thinking about where our money should go and we die. -- when we die. terre: why should i care and do something for someone else when it has nothing to do with me? steven: because doing things for other people makes you feel good . it makes you feel good on a neurological level. there is a real benefit. and people who -- my understanding is that people who -- we know for a fact that your sort of psychological state has a huge effect on your physical state. and that people who establish deep connections with other people, and even with animals, tend to live longer. there is on a pure survival level, there are good reasons t

prof. appiah: money is not the way to measure your life. as i said, mostly people do.people get the balance wrong, they think money matters more than it does. i think many people who have gotten lots of money figure that out, there are all these people who make a certain amount of money and they retire and sail around the world, and they say, that shows that if they thought making more money was the point, they would have gone on making more money and they realize that that is not so. terre: when is enough enough? warren buffett: when you have everything your family could reasonably need in the way of the pleasures of life. i do not think cost-of-living and standard of living are synonymous. i get to eat what i like to eat. i get to live where i want to live. i get to drive the car i want to drive and all of that. but, it uses up some money but , but if i spent 10 times as much or 100 times as much on it, i would not be a happier person nor would i live a better life. lama: billionaires size of stomach, same. and the fingers, only 10 fingers. so, some diamond ring, i t