最终，一个理论的价值不在于它的复杂性，而在于它解释和预测的能力。

Safety is the greatest benefit, accidents are the biggest waste.

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.

Sustainability is not an option; it's a necessity for long-term success.