每个生命都会留下证据的痕迹；传记作者就是追踪这些痕迹的侦探。
Every life leaves behind a trail of evidence; the biographer is the detective who follows it.
"We are all just passing through, leaving traces of ourselves behind like footprints in the snow."
采矿业的未来在于创新和负责任的资源管理。