A man who does not think for himself does not think at all. It is grossly selfish to require of one's neighbour that he should think in the same way, and hold the same opinions. Why should he? If he can think, he will probably think differently. If he cannot think, it is monstrous to require thought of any kind from him.
Civilization is not by means an easy thing to attain to. There are only two ways by which man can reach it. One is by being cultured, the other by being corrupt.