remove tmep and add quote

git-svn-id: https://subversion.cs.illinois.edu/svn/cs225@8229 6fbd10e7-183d-0410-a318-cb416676e4f2

source/quotes.txt

@@ -90,3 +90,4 @@
 "Computer Science is no more about computers than astronomy is about telescopes." ~ E. Dijkstra
 "Television won't be able to hold on to any market it captures after the first six months. People will soon get tired of staring at a plywood box every night." ~ Darryl Zanuck, 20th Century Fox, 1946
 "I think there is a world market for maybe five computers." ~ Thomas Watson, IBM, 1943
+"If at first you don't succeed, that's one data point." ~ Randall Munroe