What hands are here? ha! they pluck out mine eyes! Will all great Neptune's ocean wash this blood clean from my hand? No; this my hand will rather the multitudinous seas incarnadine, making the green one red. My hands are of your colour; but I shame to wear a heart so white. A little water clears us of this deed: How easy it is then! Your constancy hath left you unattended.
Mr. William Shakespeare: All's well that ends well. Twelfth night; or, What you will. The winter's tale. Macbeth (ed. 1767)