Helen Keller: When her life hit a wall in the dark, it was Miss Sullivan who smiled slightly and made her feel the warmth like sunshine. She said: "The warm sunshine shines on my face, my fingers touch the flowers and leaves, and I realize that spring is coming." Carnegie, the American steel magnate, said: "Smile is a magical radio wave, which will make others unconsciously agree with you." At a grand banquet, a businessman who usually complains about Carnegie attacked Carnegie behind his back. When Carnegie stood in the crowd and heard his speech, he didn't know it, which embarrassed the host of the banquet, but Carnegie stood there calmly with a smile on his face. When his attacker found him, he felt very embarrassed and wanted to leave the crowd. Carnegie's face is still there. Later, this man became a good friend of Carnegie. As Hugo said, "Smile is sunshine, which can eliminate the winter color on people's faces." Smiling means success. A smile is charming and lovely. Smiling is called "sweet words, careless forget worries". Indeed, smiling can shorten interpersonal relationships ... Smiling has brought great success to Hilton, which not only took the lead in overcoming difficulties, but also developed into more than 70 companies on five continents with assets of billions of dollars, becoming a global company today. ...