I am a teacher... The life I lead is the most agreeable I...

I am a teacher... The life I lead is the most agreeable I can imagine. [In the] classroom ... there await me a group of intelligent and curious young ... [people] who read the books assigned them with a sense of adventure and discovery, discuss them with zest, and listen appreciatively to explications I may offer. What makes the process most satisfying is the conviction that ... education is mankind's most important enterprise.