First, Hoyle does not limit the growth-minded advice he gives to his students to his own perspective; he also asks students who have earned As in the course to write a letter to future students outlining how they managed it. Hoyle has compiled the best of these comments into a single document that he hands out to each fresh new crop of students. When you look it over, you can see how his choice of comments continues to enforce the power of the growth mind-set in his course:
