重要的不是想法，而是将想法变为现实。
It's not about ideas. It's about making ideas happen.
The intelligence of drones will change our way of life.
"The truth is rarely pure and never simple."
Happiness lies in the joy of achievement and the thrill of creative effort.
The only way to survive is to have a sense of humor.
Every decision we make underground has an impact above ground—that's the weight we carry.
The most exciting breakthroughs come from questioning the status quo.