But for my apprehension both were blank.

Cannot I close my eyes and bid my brain

Make whites and blues, conceive without stars' help,

New qualities of color? were my sight

Lost or misleading, would yon red—I judge

A ruby's benefaction—stand for aught

But green from vulgar glass? Myself appraise

Lustre and lustre: should I overlook

Fomalhaut and declare some fen-fire king,

Who shall correct me, lend me eyes he trusts