Man has been granted total intellectual freedom in Islam. Instead, Islam itself brought that revolution in human history that granted freedom of expression to all human beings. Prior to Islam, in all periods of human history system of absolutism prevailed in the world. That is why the man was denied intellectual freedom. Intellectual freedom is no simple matter. The truth is that the secret of all human progress lies hidden in intellectual freedom. Freedom of expression is the thing that saves one from hypocrisy. Man is a thinking creature. His mind necessarily thinks and forms opinions. In such a situation, if curbs are placed on freedom of expression, people’s thinking cannot be ceased; the only thing that will occur is that their thinking will not come to their lips and pens. Any institution, nation, or state that places curbs on freedom of expression will ultimately be brimming with hypocrites. In such an atmosphere, sincere people can never be produced. The environment of freedom of expression is essential for Islam. Open, frank discussion takes place in such an environment. One needs to meet intellectual challenges and reflect deeply. Only then will the minds of people open up.