以客观角度来看，这个世界确实变得更好，但同时也变得更糟。前进一步，又倒退一步，仿佛宇宙在科技进步和文化倒退间达成平衡，使人类的进展呈钟形曲线。
A sober looks shows that just have the world gotten to be a better place after all; it is also grown a bit worse at the exact same rate.; a one step up, a one step back sort of cosmic balance between forward progress, and cultural retreat, that puts man kind on a bell curve of existence.
Plans are worthless， but planning is everything.
最大的风险是不冒任何风险。在一个快速变化的世界里，唯一注定失败的策略就是不冒险。
Greatness is a lot of small things done well, day after day.
The trace is often more powerful than the original.