Hanlon's Razor is an important mental model whose central idea is: "Never attribute to malice that which can be adequately explained by stupidity." This means that when we encounter someone else's negative behavior or undesirable outcomes, we should first consider non-malicious factors—such as ignorance, carelessness, lack of ability, or simple mistakes—rather than immediately assuming ill intent. This principle encourages openness and tolerance when judging others' motivations, helping us avoid overinterpretation and unnecessary hostility. It reminds us that many behaviors that appear aggressive or destructive often stem from insufficient information, inexperience, poor communication, or mere errors, rather than deliberate actions. Applying Hanlon's Razor helps reduce interpersonal conflict, promotes more rational analysis and effective communication, and ultimately improves decision-making quality and team collaboration.