"And don't you remember Keats proposing 'Confusion to the memory of Newton' and upon your insisting on an explanation before you drank it, his saying, 'Because he destroyed the poetry of the rainbow by reducing it to a prism? Ah, my dear old friend, you and I shall never see such days again!"
January 1, 1970
https://en.wikiquote.org/wiki/John_Keats