Lesson 1 Thinking as a Hobby1 While I was still a boy, I came to the conclusion that there were three grades of thinking; and that I myself could not think at all.2 It was the headmaster of my grammar school who first brought the subject of thinking before me. He had some statuettes in his study. They stood on a high cupboard behind his desk. One was a lady wearing nothing but a bath towel. She seemed frozen in an eternal panic lest the bath towel slip down any farther, and since she had no