Read it through once
There is no ‘tabula rasa’ doctrine in these passages, nor in any others, in the poet’s voluminous works; and of all men of great intellect and learning (it is always a matter of mere insulated intellect), born in England since the days of John Locke, no one, perhaps, has been so entirely untainted with this doctrine as Robert Browning. It is a doctrine which great spiritual vitality (and that he early possessed), reaching out, as it does, beyond all experience, beyond all transformation of sensations, and all conclusions of the discursive understanding, naturally and spontaneously rejects. It simply says, “I know better”, and there an end.