What is the meaning behind the quote “I am so modest I can admit my own fault”?

"Pride and Prejudice" is a renowned novel that delves into themes of courtship, societal hierarchy, familial bonds, and sincerity. The central male character, Mr. Darcy, embodies both pride and prejudice, a fact underscored by the assertion, "his character was decided. He was the proudest, most disagreeable man in the world." While this initially casts Mr. Darcy in an unfavorable light, the novel gradually unfolds a character capable of transformation, influenced by individuals such as Bingley and Elizabeth.

This process of change becomes evident in Darcy's dialogue in the novel's 58th chapter. A shift in Mr. Darcy's disposition is captured in the line, "I am so modest I can admit my own fault." This marks a departure from his earlier stance as he candidly acknowledges his mistake in the proposal letter, recognizing his failure to consider Elizabeth's emotions. He proceeds to openly confess his past arrogance towards Elizabeth, expressing, "You taught me a lesson, hard indeed at first, but most advantageous. By you, I was properly humbled. I came to you without a doubt of my reception. You showed me how insufficient were all my pretensions to please a woman worthy of being pleased." This dialogue signifies Darcy's evolving character and newfound humility, demonstrating his capacity for self-awareness and growth.