Definition & Meaning of "the rotten apple injures its neighbors"in English

What is the origin of the proverb "the rotten apple injures its neighbors" and when to use it?

The origin of the proverb "the rotten apple injures its neighbors" is not clearly attributed to a specific text or individual, but it has roots in traditional European wisdom, with variations of the saying appearing in different cultures. It emphasizes the idea that negativity or wrongdoing can spread and have a damaging impact on others, highlighting the importance of surrounding oneself with positive influences. The proverb serves as a reminder that one person's actions can have a far-reaching effect, and it is crucial to distance oneself from harmful influences.