The only purpose for which power can be rightfully exercised over any member of a civilized community， against his will， is to prevent harm to others.
当最后一条鱼被捕捞，人类才会明白金钱不能当饭吃。
The books that the world calls immoral are books that show the world its own shame.
Leadership in agriculture means listening to the land and the people who work it, then making decisions that benefit both.
The goal of cryptography is to make it so that the cost of breaking the system exceeds the value of the information protected.