What does this quote mean outside show is a poor substitute for inner worth?

The quote "outside show is a poor substitute for inner worth" suggests that external appearances and superficial qualities are not as valuable as a person's true character and intrinsic qualities. It emphasizes that genuine worth comes from within—such as integrity, kindness, and intelligence—rather than from how one presents themselves to the world. Ultimately, it serves as a reminder to prioritize authenticity over superficiality in assessing both ourselves and others.