When we blindly adopt a religion a political system a literary dogma we become automatons. We cease to grow.
To become self-aware people must be allowed to hear a plurality of opinions and then make up their own minds. They must be allowed to say write and publish whatever they want. Freedom of expression is the most basic but fundamental right. Without it human beings are reduced to automatons.
Modern society based as it is on the division of labor can be preserved only under conditions of lasting peace.