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.
The true value of a forest cannot be measured in board feet alone.
Adaptability is the key to survival in a fast-changing market.
自由的代价是永恒的警惕。
The best way to predict the future is to invent it.