Thomas Jefferson: I never submitted the whole system of my opinions to the creed of any party of men whatever, in religion, in philosophy, in politics or in anything else, where I was capable of thinking for myself. Such an addiction is the last degradation of a free and moral agent. If I could not go to Heaven but with a party, I would not go there at all.
Adam Smith: A true party-man hates and despises candour.
Excellent.