People? You, me, and everybody else. We are individuals, constituting society. However, our self is constructed in interaction with other people. It does not occurr in isolation.
We learn about reality, the world and ourselves by interacting with our environment. We respond to others’ actions and they respond to our’s. Actions and reactions base on previous knowledge – and at the same time, they make (new) knowledge available.
This is why people are simultaneously the carriers of culture and the most powerful vector of change in a society.