Kate Chopin said this quote

Exhaustion was pressing upon and overpowering her. Good-by--because I love you. He did not know; he did not understand. He would never understand. Perhaps Doctor Mandelet would have understood if she had seen him--but it was too late; the shore was far behind her, and her strength was gone.She looked into the distance, and the old terror flamed up for an instant, then sank again.