In George Eliot\u27s Middlemarch, the narrator reflects on those crucial events which shape pathways in our lives. For Tertius Lydgate, this occurs with the chance opening of a book to a particular page: [T]he first passage that drew his eyes was on the valves of the heart. He was not much acquainted with valves of any sort, but he knew that valvae were folding doors, and through this crevice came a sudden light startling him with his first vivid notion of finely adjusted mechanism in the human frame.\u27 For Lydgate, this seminal instant is the one which inspires him to be a doctor. While Eliot did not pursue a specifically scientific pathway in her own life, she had an undeniable interest in physiology and is even specifically described b...