William Glasser was an American psychiatrist known for his work in the field of mental health and his development of reality therapy. He emphasized the importance of personal responsibility and choice in shaping one's life, advocating for a model of mental health that prioritized individual autonomy over traditional therapeutic methods. Glasser believed that psychological issues often stemmed from a failure in fulfilling basic human needs, such as love, power, freedom, and fun. His approach encouraged individuals to focus on fulfilling these needs through more immediate and relational means rather than through external factors or past experiences. Through his writings and teachings, Glasser sought to empower individuals to take charge of their lives and make choices that would lead to fulfillment and happiness. His influence can be seen in various educational and therapeutic practices that continue to emphasize self-determination and responsibility. William Glasser was an influential figure in the realm of mental health, known for developing concepts that emphasized personal agency in therapeutic settings. Through reality therapy, he promoted a model where individuals are encouraged to take responsibility for their actions and decisions, fostering a sense of empowerment. Glasser's ideas remain relevant today, resonating in various fields, including education and personal development, illustrating the importance of meeting basic human needs.