"Ah, beware of snobbery; it is the unwelcome recognition of one's own past failings"

This quote by Cary Grant is a caution against snobbery, which is the attitude of supremacy or disdain towards those perceived as inferior. Grant is warning against this attitude since it is a reflection of our own previous mistakes and drawbacks. He is suggesting that when we look down on others, we are in truth looking down on ourselves. We may be attempting to distance ourselves from our own past failures, however in doing so, we are only highlighting them.

Grant is motivating us to be simple and to acknowledge that we are all human and have actually all made mistakes. He is recommending that rather of looking down on others, we should be more understanding and flexible of our own and others' past failings. We need to strive to be more accepting and caring, and to recognize that we are all on the same journey, learning and growing together.