Percy Bysshe Shelley

"The curse of this life is that whatever is once known can never be unknown. You inhabit a spot which before you inhabit it is as indifferent to you as any other spot upon the earth, & when ... you think to leave it, you leave it not, -- it clings to you ..."

-Percy Bysshe Shelley in a letter to Thomas Love Peacock, 1816 from Ann Wroe's new biography "Being Shelley" Note: the ellipsises and punctuation are Shelley's.