Freedom of speech has been a topic of discussion for many years. Since democracy was established in many countries to ensure security and rights, freedom of speech has been one of the most important rights in any constitution. Freedom of speech is a human right that all people should have and that must be respected. As individuals, we have the right to express our opinions, write, publish or communicate and such expressions must be, if not shared, respected. Different countries have a certain level of tolerance when enforcing this right. Sometimes free speech can become more harmful than helpful. This freedom tells what happens in everyday life, makes you aware, informs you, but it does damage when it is not founded, or is not objective, since it violates human rights. Those who care about free speech have always wondered about its limits. One of these limits is incitement to violence. Free speech is a double-edged sword that can change the course of many things; lives, civilization, even history. For many people this freedom to express their feelings and beliefs has been beneficial. Unfortunately, the same freedom has been counterproductive for other people. There is a big difference between freedom of speech and violation of the right to privacy. Free speech has proven to be such a tremendously powerful influence that it has changed the course of history on several occasions for the good of the world. Since ancient times, humans have demonstrated the need to express what they think is right and what needs to be changed. As a result, the world has transformed into a more tolerant society towards other cultures, religions and traditions. However, these innovations do...... middle of paper ......that many people are fortunate enough to exercise, people must be cautious, because this “right” is a double-edged sword, which can cause big problems if it is not used well. In some countries around the world, this right is punished, such as in Mexico, where more than 65 journalists have been killed in recent years, perhaps due to the increase in drug trafficking and the way in which these journalists, for attempting to report these criminals have been silenced. Perhaps one day people will understand and respect each other, and at the same time adequately express their opinions, because mutual understanding is the key to peace. As Benito Juarez, former president of Mexico, also called the Lincoln of Mexico, once said: "Entre los individous, como entre las naciones, el derecho al respeto ajeno es la paz" which means: "Among individuals as well as nations, respect for the rights of others is peace".