On the Intrinsics of Individual Human Activity （蒋闻铭）
We consider the activities of a matured individual human being. We adopt the
opinion that the world is a collection of a variety of independent entities, in which
and with which independent entities interact.
A matured individual humans being is one independent entity. His/Her activities
have a physical component and a mental component. Correspondingly, it has a phys-
ical existence, which we will also refer as his/her body, and a mental existence, which
we will also refer as his/her mind. Between the two, the physical existence is basic in
the sense that a mental existence is always attached to a physical existence. There
exist no mental activities without a physical host.
An individual interacts with the world through its physical existence. Mental
activities are internal and they do not directly interact with the world. The mind
receives feedbacks through the sensors attached to the body. The feedbacks presented
to the mind are organized subjecting to the a priori framework of space, time and
relationships. The mind works on and responds to the feed backs, directing the
physical activity of the individual.
