如今人们对每样东西的价格了如指掌,对它们的价值却一无所知。
Nowadays people know the price of everything and the value of nothing.
在密码学的世界里,唯一安全的系统是永远不连接到任何网络的系统。
The world doesn't have to be like this. Things can be different.
农业是最崇高的职业,因为它维系着生命本身。