This proverb means that even those who appear perfect or beautiful can have a small flaw, and that flaw can be enough to attract criticism. It reminds us that no one is entirely free from imperfections, and it is important to acknowledge and accept the imperfections of others as well as our own. The equivalent proverb in English would be: ‘Nobody is perfect.’ It also encourages humility, by recognizing that everyone has their own weaknesses.