At times as an instructor I have faced the challenge of teaching students of limited ability. One student in particular comes to mind. I came home frustrated that this student lacked the basic skills needed to pass the course. I was angered with admissions and disappointed with my inability to teach this student. My wife made the simple and profound comment, "Given that the student will not pass the course what skills has he learned from you that he can take with him?" My frustration ceased and was replaced by a deeper understanding of the essence of teaching.