Which half? One day when I was a junior medical student, a very important Boston surgeon visited the school and delivered a great treatise on a large number of patients who had undergone successful operations for vascular reconstruction. At the end of the lecture, a young student at the back of the room timidly asked, "Do you have any controls?" Well the great surgeon drew himself up to his full height, hit the desk, and said, "Do you mean did I not operate on half of the patients?" The hall grew very quiet then. The voice at the back of the room hesitantly replied, "Yes, that's what I had in mind." Then the visitor's fist really came down as he thundered, "Of course not. That would have doomed half of them to their death!" God, it was quiet then, and one could scarcely hear the small voice ask, "Which half?" E.E. Peacock Jr., Seeing With Fresh Eyes science
This small internal quaver Pay attention now: No matter how much you know or learn about syntax, grammar, or rhetoric, This small internal quaver, this inner disturbance, Is the most useful evidence you'll ever get. Someday, you'll be able to articulate what causes it. But for now, what's important is to notice it. Noticing is always the goal. ...the faint vertigo caused by an ambiguity you can't quite detect. What matter is what it points to. Find out what's causing it and fix it Even if you're not sure how. Verlyn Klinkenborg, Several Short Sentences About Writing Notes on the Synthesis of Form attention