Published in 1948, "The Virtues of Human Nature" is the sister volume to "How to Win Friends and Influence People." This work is a collection of Carnegie's important and vivid life experiences, documenting how countless individuals have overcome psychological problems to achieve success. It is one of the principal textbooks used in Carnegie's adult education and training institutions, guiding people on overcoming worries and finding happiness, thus enjoying a joyful life. This book, brimming with wisdom and strength, enables you to understand and believe in yourself, fully tap into the untapped wealth within your mind and body, and harness the advantages of human nature to forge a new path towards successful and happy living.