The boy who posed proudly for the camera with a balsa-wood glider and a silver cup grew naturally into the inventor whose chief joy was to make wings ever lighter and ever larger.

• 那个带着轻木滑翔机手拿银杯得意地为照相机摆姿势的男孩自然而然地长成了一个发明家，他最大的兴趣是制造越来越轻巧、越来越巨大的机翼。