It is important that the artist should be highly educated in his own art; but his education is one that is hindered rather than helped by the ordinary processes of society which constitute education for the ordinary man. For these processes consist largely in the acquisition of impersonal ideas which obscure what we really are and feel, what we really want, and what really excites our interest. It is of course not the actual information acquired, but the conformity which the accumulation of knowledge is apt to impose, that is harmful. Tennyson is a very fair example of a poet almost wholly encrusted with parasitic opinion, almost wholly merged into his environment. Blake, on the other hand, knew what interested him, and he therefore presents only the essential, only, in fact, what can be presented, and need not be explained. And because he was not distracted, or frightened, or occupied in anything but exact statement, he understood. He was naked, and saw man naked, and from the centre of his own crystal.
from The Sacred Wood, 1921
(quoted by Leavis in 'Justifying One's Valuation of Blake' in The Human World No. 7)