why? >> she was strong on education and the arts. >> and the role of first lady? >> she changed it in terms of putting education in the forefront. she took care of children. she was very concerned about them. >> where would you put her in the pantheon of first ladies? >> she's the first national celebrity first lady. i think we're talking about the development of of our understanding of the institution of first lady. she is the first one in which we think about what the uses are all the celebrity, and good ways and bad ways. the first family was owned by the american public. we talked about how that could be a positive tool for the presidency. if only grover cleveland could have seen that. >> thanks to both of you. thanks to our viewers for your

participation. ♪ [captions copyright national cable satellite corp. 2013] [captioning performed by national captioning institute] >> on monday, our first ladies

series continues with a look at caroline harrison, wife of the 23rd resident, benjamin harrison. she makes the first speech by a sitting first lady. a new wing that would be billed for women. the life and times of caroline harrison. life on monday at 9 p.m. eastern on c-span and c-span 3 and on c-span radio and c- span.org. our website has more about the first ladies including a special section welcome to the white house. produced by the white house historical association. the association, we are offering a special edition of the book first ladies at the united states of america. featuring about durfee of each frances -- featuring biographies

of each first lady. now available for the discounted price of $12.95 plus shipping. go to c-span.org/products. >> c-span, created by cable companies in 1979 and brought to you as a public service by your television provider. next some of this year's commencement speeches by business leaders around the country. we begin with the twitter ceo dick costolo at the university of michigan, ann arbor. and nate silver at the new school university in new york. and later, steve wozniak at uc berkeley. >> twitter ceo dick costolo give

the commencement address at his alma mater, the university of michigan. before his internet career, he was a canadian -- he was a comedian. [applause] >> i love you too. you know i have to start by tweeting this. give me a second. i'm a professional. this only take a second. [laughter] all right. thent to start by thanking school's president and the students and faculty and the board of regents who sit behind me and quietly judge us all. myould also like to thank mother and father who are here today. and i would like all of

you to remember at the end of the day to take a moment to thank your parents or whoever it was that help you get where you are today. they have sacrificed greatly for you and we will be out of here by 3:30 p.m., i promise. [laughter] when i woke up this morning and started writing my speech -- [laughter] i was thinking i first month on campus when i was a freshman. the football was ranked number one. there is all this excitement on campus. was in wisconsin and we went up there and lost our first game. 21-14. there was crushing disappointment. i would like you to think about that expectation followed by crushing disappointment as a metaphor for your next 20 minutes with me.

[laughter] when i was sitting where you were many years ago but was seem to me like it was yesterday, i was earning my degree in computer science. [cheers and applause] yay, nerd. [laughter] i had to have a certain number of art credits to graduate. my first semester of senior year, i decided to take an acting class. [cheers and applause] i'm going to pander to the crowd. [laughter] i thought i would take an acting class because we would not have a lot of homework. we will say a few lines to each other and i could work on the operating system program device. and i loved the class so much

that my second semester of senior year, i took another acting class. standup comedy, which i had never done before. by the time i was sitting where offers today, i had from two technology companies to work with them as a programmer, but i decided what i would do is move to chicago and try to get into the improv comedy groups and go on from there to rise to fame and glory. [laughter] in the hollywood version of the story, what happened is there would be three minutes where i would move to chicago and suffer at night or in the rain and there is music in the background and i would come home that ig in a giant loft could somehow miraculously afford and follow sleep. after those three minutes, i would be discovered by director

who would cast me in a film and walk on the red carpet and my parents would give me the thumbs up. in the real world story of what happened when i decided to make a big bet on myself and take that chance to do this because it is what i loved, i was grinding away for a long time and i had no money. we would rehearse during the day and perform these little theaters at night for free. i was taking classes during the day and trying to learn improvisation. i eventually had to get out because i had no money. i put my degree from michigan to rather than selling stuff at crate and barrel. [laughter] i cap and improvising in chicago for many years. we hadsons i learned --

this director that was instructing a class. 10 of us in the class. the guys are improvising that they are in a laundry mat. the scene ends. he ask all of us, what do you see on stage right now? there is nothing up there. it is an empty stage. he says so for you guys have improvise you are in an , andment, a laundromat apartment. what are you afraid of? we looked at each other. what do you mean? he said, you need to make more courageous choices. even if the stages completely andy, you can go out there be in a keebler elf factory r.b.i. the space shuttle -- or be an astronaut on the space shuttle. take courageous risk. a few months later, i was stuttering -- study with another

legendary director. steve correll was out on stage. he was improvising something and i thought of this amazing line. i thought, i have to get this line out. i get to the stage and i start to try moving the seat in the direction of what i wanted to say. he stops the scene. you cannot plan a script. the beauty of improvisation is your experience in it in the moment. if you try to plan what the next line is supposed to be, you're going to be disappointed when the other people on stage with you do not do or say what you want them to and you'll stand there frozen. the in this moment. -- be in this moment. moment.in this

i continue to stay in chicago and improvise for many years. i got additions for shows and got none of them. fortunately during this time, the internet happened. that was great. i know it is funny to you. when i was your age, we do not pants.e internet in our [laughter] indidn't even have it not our pants. that's how bad it was. i know i sound like my grandfather. we did not have teeth. [laughter] what was i talking about? the internet.

i dove into the internet because it was the structure that had these amazing possibilities. i grade as sequence of companies over the course of the next 20 years that led me to twitter. if there is ever an example of andimportance of making focusing on what you love, it is twitter. the jack dorsey talks about origins of his thinking for the product, he talks about his fascination with maps and his ultimate fascination with dispatch systems and more efficient way to get taxis and ambulances for where they need to go. when he sent out his first tweet, he did not ran for president obama to declare victory on the platform and the 2012 election.

that ours thought service would be a great alternative to medication service at the noble -- if the mobile networks are spotty and aftermath. -- alternative to medication service if the mobile networks are spotty in the aftermath. we did not know that sony does it to organize protests -- that someone would use it to organize protests. here's the amazing thing about .hat i have observed not only can you not ran the impact you are going to have come you often will recognize it even when you're having it. being withs after

twitter, the streets were completely blocked off. the u.s. secret service was there and russian security forces were there. it was a crazy scene walking into the building. i remember going into the metal detector to get into our office, which were there just for the day. there had these crazy uniforms and german shepherd's that look like they could kill you. there is a huge buildup. the russian president came in with his entourage. there are reporters and cameras behind him. he was going to send his first tweet from the office to the world. they were taking a two or the office before sending the first -- a tour of the office before sending the first tweet.

being the thoughtful and charismatic leader i was, i said, it is, totally down? totally down. , you guys and the ad presidentworld re obama welcoming the russian andident to twitter declared we may not need the red phone anymore because we could use twitter. it is always like that. is what others frame for you and the world after it happens. what youdent is only are experiencing and focused on