In simple terms, this quote compares a closed-minded person to the pupil of an eye when exposed to light. Just as more light causes the pupil to become smaller and let less light in, increasing knowledge or information for someone with a rigid mindset makes them even more resistant to new ideas.
On a deeper level, Holmes suggests that people who are deeply entrenched in their views will react defensively when confronted with contradictory evidence or perspectives. Instead of embracing the new information and expanding their understanding, they tend to become more insular and protective of their existing beliefs. This behavior can hinder personal growth and societal progress because it prevents open-minded discussion and learning from diverse viewpoints.
Oliver Wendell Holmes Sr., the author of this quote, was an American physician, poet, and essayist born in 1809. He is known for his witty and insightful commentary on a range of topics including literature, medicine, and philosophy. His work often explored the complexities of human nature and societal issues, making him a respected intellectual figure during the 19th century.
