applying that passion and that to placesumbers, where numbers can make a huge difference, such as consumerinance, health care. emily: you mentioned your kids. you are very passionate about your work, and your hobbies. what kind of parent are you? max levchin: i hope i am a good parent. my number one worry these days is if i am a good a father as i can be. determined that not only am i a nerd, my son is a nerd. i am very happy about that. he is a four-year-old that loves arduino. he already knows how to code. he is four and a half. playing blink you like games. h phase do muc you have that yahoo! can be turned around? max levchin: i have lots of faith and marissa. ♪ emily: if you could master one skill that you haven't mastered yet, what would it be? max levchin: parenting. emily: what would you title your autobiography? max levchin: "drive." i am much or that is a good title, but one of the things i keep on my back as i age, i always come back to where did it all begin. what is the one thing that makes me who i am? i am 100% sure it is drive. that i got from my grandmother. i remember thin