The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.

肉类加工业有责任在效率和道德实践之间取得平衡。

The self is not so much a substance as a process, and it is the continual task of education to change the process, to develop its activities, and to guide it into channels of efficiency.

权力不仅仅是控制，更是责任。