A Man Who Liked Studying and Asking

Russell was a student of Cambridge University ．He asked his teacher Moore ，“Who is your best student ？”“Viter，”said Moore．“Why ？”“Because of all my students only he himself always has a lot of questions when he listens to my lessons．”

Viter's achievements（成就）surpassed（超过）Russell afterward（后来）．Why did Russell fall behind ？Viter said ，“Because he doesn't have any questions．”