Terry Pratchett said this quote

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. Goodbye.