It has transformed the grand question of the relations between nature and mind into the petty form of the interaction between the human body and mind.
Berkeley's polemic against matter was based on this confusion introduced by the transmission theory of light.

He advocated, rightly as I think, the abandonment of the doctrine of matter in its present form.

He had however nothing to put in its place except a theory of the relation of finite minds to the divine mind.
But we are endeavouring in these lectures to limit ourselves to nature itself and not to travel beyond entities which are disclosed in sense-awareness.
Percipience in itself is taken for granted.

We consider indeed conditions for percipience, but only so far as those conditions are among the disclosures of perception.

We leave to metaphysics the synthesis of the knower and the known.