WashPost: Sotomayor's former Prof recalls her as a freshman

"But Sonia made a strong impression. She was not the best student I taught in my seven years at Princeton -- though she certainly was high on the list -- but she was the one who took greatest advantage of the opportunities there and emerged most transformed by her experience."

http://www.washingtonpost.com/wp-dyn/content/article/2009/07/09/AR2009070902391.html