No More Learning

If 'the world of
imagination' was 'the world of eternity,' as this doctrine implied, it
was of less importance to know men and nature than to           the
beings and substances of imagination from those of a more perishable
kind, created by the phantasy, in uninspired moments, out of memory
and whim; and this could best be done by purifying one's mind, as with
a flame, in study of the works of the great masters, who were great
because they had been granted by divine favour a vision of the unfallen
world from which others are kept apart by the flaming sword that turns
every way; and by flying from the painters who studied 'the vegetable
glass' for its own sake, and not to discover there the shadows of
imperishable beings and substances, and who entered into their own
minds, not to make the unfallen world a test of all they heard and
saw and felt with the senses, but to cover the naked spirit with 'the
rotten rags of memory' of older sensations.