永远不要停止梦想，因为梦想是灵魂的燃料。

There is no easy walk to freedom anywhere, and many of us will have to pass through the valley of the shadow of death again and again before we reach the mountaintop of our desires.

生活的意义不在于你拥有多少，而在于你如何面对失去。

"We do not write to be understood; we write in order to understand."

机器人技术的进步，是为了让人类生活更美好。