系统对给定输入的响应是其历史记录的函数。
Surround yourself with those who are going to lift you higher.
When we are planning for posterity, we ought to remember that virtue is not hereditary.
La literatura es una forma de resistencia, de mantener viva la memoria y de luchar contra el olvido.
The only limit to our realization of tomorrow is our doubts of today.