Progress is measured by the degree of differentiation within a society.
America has believed that in differentiation not in uniformity lies the path of progress. It acted on this belief it has advanced human happiness and it has prospered.
The freedom of thought is a sacred right of every individual man and diversity will continue to increase with the progress refinement and differentiation of the human intellect.
One can be a brother only in something. Where there is no tie that binds men men are not united but merely lined up.