The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man. )

Innovation in quarrying isn't just about new technology - it's about new thinking.

无人机行业的发展，最终是为了服务人类，而不是替代人类。

The worst pain a man can suffer is to have insight into much and power over nothing.