"If they don't know you personally": This phrase sets the condition for the advice, specifying that it applies to individuals who are not intimately familiar with you or your life.
"Don't take it personal": This is the core message of the quote, advising against taking negative comments or judgments personally. It encourages a more detached and emotionally resilient response.
Overall, this quote promotes emotional resilience and a healthy boundary between one's sense of self-worth and the opinions of others. It reminds us not to be overly affected by the views of those who may not have a comprehensive understanding of who we are as individuals.