<p><a href="http://us.rd.yahoo.com/dailynews/rss/obits/*http://news.yahoo.com/s/ap/20080725/ap_on_re_us/obit_pausch"><img src="http://d.yimg.com/us.yimg.com/p/net/20080725/capt.1512d57d5d6f4721562c265553431000.jpeg?x=92&y=130&q=85&sig=nMU3k7w4cAf7elJgtmr7vw--" align="left" height="130" width="92" alt="This undated photo provided by the Pausch family shows Jai and Randy Pausch, and their children Logan, front left, Dylan and Chloe. The computer scientist died early Friday, July 25, 2008, at his home in Virginia. He was 47. (AP Photo/The Pausch family collection)" border="0" /></a>AP - Randy Pausch said obstacles serve a purpose: They "give us a chance to show how badly we want something." Confronted with incurable cancer, he devised a last lecture that became an Internet sensation, a best-selling book and a celebration of a life spent achieving his dreams.</p><br clear="all"/>