Heir to the Empire (Star Wars: The Thrawn Trilogy, #1)

by Timothy Zahn

“Do you know the difference between an error and a mistake, Ensign?” The entire bridge had gone deathly still. Colclazure swallowed again, his face starting to go pale. “No, sir.” “Anyone can make an error, Ensign. But that error doesn’t become a mistake until you refuse to correct it.”