江河的水之所以浩浩荡荡，并非只由一个源头流出来；无比珍贵的皮衣，并非只由一只狐狸腋下的毛皮所能制成。
"The truth is rarely pure and never simple."
It is the preoccupation with possessions， more than anything else， that prevents us from living freely and nobly.
适应能力是当今快速变化的世界中最重要的技能。
Technology accumulation is a long-term process; short-term gains should not be the focus.
