The quote "By blood and by choice, we make our ghosts; we haunt ourselves" from Diana Gabaldon's "Drums of Autumn" reflects the idea that our personal histories, including both our ancestry and our decisions, shape our identities and experiences. The concept of 'ghosts' here symbolizes the memories and influences that linger in our lives, often tied to familial connections and choices we make throughout our journeys.

This haunting presence of our past can serve as both a source of strength and a burden, shaping our paths and how we perceive ourselves. The quote suggests that we are not only defined by our lineage but also by the choices we embrace, emphasizing that both elements can create lasting impressions on our lives. Thus, we continually navigate the complex interplay between our heritage and our personal agency.