无人机的安全性不是选项，而是底线。
Drone safety is not an option, but a baseline.
法律的目的不是废除或限制，而是维护和扩大自由。
The only limits that exist are the ones you place on yourself.
"History is not just facts and dates; it’s the lives of people who lived them."
"Technology is the knack of so arranging the world that we don’t have to experience it."
"In the end, we'll all become stories."
The best mathematicians are those who are not afraid to take risks.