The Wee Free Men (Discworld, #30; Tiffany Aching, #1)

by Terry Pratchett

Miss Tick sniffed. “You could say this advice is priceless,” she said. “Are you listening?” “Yes,” said Tiffany. “Good. Now . . . if you trust in yourself . . .” “Yes?” “. . . and believe in your dreams . . .” “Yes?” “. . . and follow your star . . .” Miss Tick went on. “Yes?” “. . . you’ll still get beaten by people who spent their time working hard and learning things and weren’t so lazy. Good-bye.”

Terry Pratchett offers superb (and typically hilarious) advice about following your dreams.