Paul Müller, my teacher of German, is not far from eighty. Quite unsteady on his feet, he does not see very well, either. “Paul,” I said as soon as I came to his house for today’s lesson, “I heard that you had fallen yesterday.” “Who told you?” he laughed with some surprise. It was clear he was not very eager to talk about his fall, but I insisted. “Well,” he chuckled, “I fell right in front of my car that was parked right in front of the house.” He could not get up, but some tourists walking by helped him to his feet. He eventually clambered into his car and drove away. “For a long time I was lying on the cobblestones like a frog,” he said and extended his arms forward as if he was about to push himself up. He could not remember how he fell, but he was quite eager to change the subject. “Yes,” he laughed for the last time and waved his hand, “exactly like a frog!” And that was all I could learn from him.