任何社会中最危险的创造物是那些没有什么可失去的人。
The most dangerous creation of any society is the man who has nothing to lose.
The more we understand individual things， the more we understand God.
These young guys are playing checkers. I’m out there playing chess.
True craftsmanship leaves both the product and the planet better than it found them.
没有希望地吃面包仍然是慢慢地饿死。