Who in the rainbow can draw the line where the violet tint ends and the orange tint begins? Distinctly we see the difference of the colors, but where… - Herman Melville

Who in the rainbow can draw the line where the violet tint ends and the orange tint begins? Distinctly we see the difference of the colors, but where exactly does the one first blendingly enter into the other? So with sanity and insanity.

Now envy and antipathy, passions irreconcilable in reason, nevertheless in fact may spring conjoined like Chang and Eng in one birth. Is Envy then such a monster? Well, though many an arraigned mortal has in hopes of mitigated penalty pleaded guilty to horrible actions, did anybody ever seriously confess to envy? Something there is in it universally felt to be more shameful than even felonious crime. And not only does everybody disown it, but the better sort are inclined to incredulity when it is in earnest imputed to an intelligent man. But since it's lodgement is in the heart and not the brain, no degree of intellect supplies a guarantee against it.

The sky slides into blue, the bluffs into bloom; the rapid Mississippi expands; runs sparkling and gurgling, all over in eddies; one magnified wake of a seventy-four. The sun comes out, a golden huzzar, from his tent, flashing his helm on the world. All things, warmed in the landscape, leap. Speeds the daedal boat as a dream.

Struck dead by an angel of God! Yet the angel must hang!