Knowledge is represented in the mind as symbolic structures.
知识在心灵中以符号结构的形式表征。
"We are what we repeatedly do. Excellence, then, is not an act but a habit."
历史学家的任务是复活那些被时间湮没的声音。
我们必须不断地跳下悬崖,并在下落的过程中长出翅膀。