Kuidas vabaneda stressist ja muretsemisest

Dale Carnegie was a pioneer in what is now known as the human potential movement. His teachings and writings have helped countless people around the world become more confident, friendly, and influential. His contribution to society has been summed up in these words: “Dale Carnegie did not solve any of the deepest mysteries of the universe, but perhaps he did the most to help people learn how to get along with each other—which sometimes seems like the biggest mystery of all.”