In Massachusetts today, while, on the one hand, there are a great many rules which are quite sufficiently accounted for by their manifest good sense,… - Oliver Wendell Holmes

Men must turn square corners when they deal with the Government.

To allow opposition by speech seems to indicate that you think the speech impotent, as when a man says that he has squared the circle, or that you do not care whole-heartedly for the result, or that you doubt either your power or your premises. But when men have realized that time has upset many fighting faiths, they may come to believe even more than they believe the very foundations of their own conduct that the ultimate good desired is better reached by free trade in ideas —that the best test of truth is the power of the thought to get itself accepted in the competition of the market, and that truth is the only ground upon which their wishes safely can be carried out. That at any rate is the theory of our Constitution.

Your remark about the “oughts” and system of values in political science leaves me rather cold. If as I think, the values are simply generalizations emotionally expressed, the generalizations are matters for the same science as other observations of fact. If as I sometimes suspect, you believe in some transcendental sanction, I don't. Of course, different people, and especially different races, differ in their values — but those differences are matters of fact and I have no respect for them except my general respect for what exists. Man is an idealizing animal — and expresses his ideals (values) in the conventions of his time. I have very little respect for the conventions in themselves, but respect and generally try to observe those of my own environment as the transitory expression of an eternal fact. . .