What was the speech Mrs Prentice gave to Spencer Tracy in guess who's coming to dinner about shell of a old man?

In "Guess Who's Coming to Dinner," Mrs. Prentice, played by Katharine Hepburn, delivers a poignant speech to Spencer Tracy's character about her husband, describing him as a "shell of an old man" who once had strong beliefs but has become complacent and fearful. She emphasizes the importance of standing up for one’s convictions, particularly in the face of societal change. This moment highlights the generational and ideological divide between the characters, showcasing the struggle to embrace progress and diversity. Ultimately, her Words serve as a catalyst for Tracy’s character to confront his own biases.