Words to live by:
"Moral certainty is always a sign of cultural inferiority. The more uncivilized the man, the surer he is that he knows precisely what is right and what is wrong. All human progress, even in morals, has been the work of men who have doubted the current moral values, not of men who have whooped them up and tried to enforce them. The truly civilized man is always skeptical and tolerant, in this field as in all others. His culture is based on ‘I am not too sure.’"
It’s H. L. Mencken. My version:
"The defining characteristic of the conservative is that he knows what he doesn’t know… The first thing to say is that this philosophy is not warmed-over relativism or nihilism. While the fundamentalist knows the truth, the nihilist believes it is an illusion, that nothing is true, and everything is valid. The conservative differs from both. While not denying that the truth exists, the conservative is content to say merely that his grasp on it is always provisional. He may be wrong. He begins with the assumption that the human mind is fallible, that it can delude itself, make mistakes, or see only so far ahead. And this, the conservative avers, is what it means to be human."
For a full treatment of the political and theological consequences of this, see "The Conservative Soul."