Core Viewpoint - The article discusses the characteristics of stubborn individuals and how their rigid mindset can hinder personal and professional growth, emphasizing the importance of improving cognitive flexibility to overcome stubbornness [1][2][16]. Group 1: Characteristics of Stubborn Individuals - Stubborn individuals often exhibit rigid thinking and tend to solve problems using the same outdated methods, such as blaming personnel issues instead of analyzing strategic or organizational problems [4][7][8]. - They believe they are always right and dismiss constructive feedback from others, leading to a cycle of external blame when things go wrong [9][12]. - Even when aware of their mistakes, stubborn individuals refuse to acknowledge them, viewing it as a loss of face, which prevents them from learning and growing [13][14]. Group 2: Improving Cognitive Flexibility - To enhance cognitive flexibility, individuals should adopt an open mindset, which involves accepting different opinions and recognizing personal limitations [18][20]. - Deep thinking is essential for developing new cognitive models, allowing individuals to adapt their problem-solving approaches when faced with new challenges [24][27][30]. - Validating these cognitive models through practical application is crucial, as theoretical knowledge without practice remains ineffective [31][33].