In an industry as traditional as cement, disruption is the only path to progress.

A person may cause evil to others not only by his actions but by his inaction， and in either case， he is justly accountable to them for the injury.

The dead are not dead. They are alive in memory.

Physics is not just a science, it is a way of thinking about the world.

I believe in such cartography – to be marked by nature, not just to label ourselves on a map like the names of rich men and women on buildings.