The causal perspective is the key to unlocking the mysteries of the universe.

The best time to plant a tree was 25 years ago. The second best time is today.

唯一真正的发现之旅不是去陌生的地方，而是拥有另一双眼睛。

A city’s architecture should reflect its soul.

"The greatest magic is not in the spells we cast, but in the lives we touch."

The challenge is to make the invisible visible.