The city's poor are like the roots of a tree: unseen, but essential to its survival.

The best way to predict the future is to invent it.

The value of drones lies not in flying, but in implementation.

The march of invention has clothed mankind with powers of which a century ago the boldest imagination could not have dreamt.

The price of greatness is responsibility.

"History is the echo of voices we can no longer hear."

社会戏剧是一个揭示社会中潜在紧张和冲突的过程。