在权威人士错误的问题上坚持正确是危险的。
It is dangerous to be right in matters where established men are wrong.
The material is not just a skin, it’s the soul of the building.
历史上的每位暴君都相信自由——他自己的自由。
He who is not contented with what he has，would not be contented with what he would like to have.
写作的行为是一种自我发现的行为。
机器人技术的创新需要机械工程、电子学和计算机科学的结合。