The only thing I'm sure of is that I know nothing.
机器人技术的进步，是为了让人类生活更美好。
这个世界充满了征兆和奇迹，但我们每天走过却视而不见。
You have to write the book that wants to be written. And if the book will be too difficult for grown-ups, then you write it for children.
Our policies must be as dynamic as the oceans they aim to protect.
