You see as plain as can be, that I write as a man of erudition; --that even my similies, my allusions, my illustrations, my metaphors, are erudite, --and that I must sustain my character properly, and contrast it properly too, --else what would become of me? 
You see plainly, that I write as a man of learning; - that even my similes, my allusions, my metaphors, are erudite, - and that I must sustain my character properly, or what would become of me? 