“In the old times of which I have spoken, they desired to make all men think exactly alike. All the mechanical ingenuity of the world cannot make two clocks run exactly alike, and how are you going to make hundreds of millions of people, differing in brain and disposition, in education and aspiration, in conditions and surroundings, each clad in a living robe of passionate flesh — how are you going to make them think and feel alike?”

The Liberty of Man, Woman and Child (1877)
Context: In the old times of which I have spoken, they desired to make all men think exactly alike. All the mechanical ingenuity of the world cannot make two clocks run exactly alike, and how are you going to make hundreds of millions of people, differing in brain and disposition, in education and aspiration, in conditions and surroundings, each clad in a living robe of passionate flesh — how are you going to make them think and feel alike? If there is an infinite god, one who made us, and wishes us to think alike, why did he give a spoonful of brains to one, and a magnificent intellectual development to another? Why is it that we have all degrees of intelligence, from orthodoxy to genius, if it was intended that all should think and feel alike?