Act instead of being acted upon

A tree is known by its fruit. Bearing fruit is an act of the tree. It is interesting to note that while the tree produces its fruit, it is also acted upon by several external forces. It is within the natural law that under favourable conditions, a seed would germinate and grow. Lack of water, lack of sufficient sunshine, nutrition and proteins, are several external forces that stunts the inner dynamism of the growth of the tree. Once a tree lays deep roots, it is thoroughly limited in its space and all that surrounds it. 

What about a human being? A human being acts consciously in spite of the fact that he is acted upon by several forces. He is not like a tree unable to move from rootedness and situatedness to rootlessness. Man is able to be in several limiting chains of situations and able to establish one's own well-being. He is a carrier of tradition, symbolic meanings and beliefs, historicity, prejudices, Biases and all that one could imagine.

Is a person more often vulnerable to be acted upon or inclined to act against being acted upon?
A person either acts or reacts against a situation of being acted upon.

A person of integrity pro-acts against a situation of being acted upon.
A situation of being acted upon merely supply the setting in which a human person can exercise his freedom to act.