在像水泥这样传统的行业中，颠覆是进步的唯一途径。
In an industry as traditional as cement, disruption is the only path to progress.
而是根据国家的具体情况,去掉那些无益于实用的东西,这就足够使国家的财利增加一倍了。
What you actually pay for something is at least twice the listed price because of the energy， time， money needed to set it up， learn， maintain， repair， and dispose of at the end. Not all prices appear on labels. Actual costs are 2x listed prices.
"Imagination is more important than knowledge. Knowledge is limited. Imagination encircles the world."