Dale Carnegie's 1948 book "How to Stop Worrying and Start Living." The text provides advice on how to overcome worry by outlining a variety of techniques, including the importance of analyzing situations, focusing on the present moment, and cultivating a positive mindset. It explores the impact of worry on physical health, illustrating the link between negative emotions and illnesses. The text also encourages readers to find fulfilling work, practice relaxation techniques, and develop a strong sense of purpose in life. The author emphasizes the value of helping others and finding joy in simple acts of kindness. Finally, the source includes personal anecdotes from notable figures, such as John D. Rockefeller and Roger Babson, who share their experiences with worry and the strategies they used to conquer it.