More than 2300 years ago, there was an orator named Demosthenes in Athens. I'm afraid the history speaker used to be a serious stutterer. He was born in a rich family, sick in his childhood, with uneven shoulders, short and thin. When he was a child, his uncle was involved in a lawsuit to possess his property. When the court tried him, he lost the case because he couldn't reply, and he was laughed at and bullied everywhere because of his stuttering and ugly appearance, and lived a sad and desperate life all day.

He thought that all his pains were caused by stuttering, so he made up his mind to correct his stuttering and exercise his ability to speak and argue normally. According to legend, he practiced speaking in front of the mirror at home every day, or ran to the seaside, taking the sea as the audience and opposing the roar of the tide with his fierce and eloquent speech. He used to practice speaking with a stone in his mouth. After a long and persistent hard exercise, he actually became a great speaker. Because he is good at arguing, he became a very prestigious lawyer before he was thirty. In order to resist the enemies of the motherland, he lobbied countries to form a military alliance, aroused the awakening of their own people and defeated powerful enemies. Philip, the Macedonian king who tried to annex the Greek states at that time, lamented: "Although the Greek states have strong naval forces, they are not enough to take care of them. I am only afraid of Demosthenes's three-inch tongue. "