In practical matters the end is not mere speculative knowledge of what is to be done, but rather the doing of it. It is not enough to know about Virtue, then, but we must endeavor to possess it, and to use it, or to take any other steps that may make.
In other words, a person who is fanatic in matters of religion, and clings to certain ideas about the nature of God and the universe, becomes a person who has no faith at all.
Lord Polonius: What do you read, my lord? Hamlet: Words, words, words. Lord Polonius: What is the matter, my lord? Hamlet: Between who? Lord Polonius: I mean, the matter that you read, my lord.
Civility also requires relearning how to disagree without being disagreeable. Surely you can question my policies without questioning my faith or, for that matter, my citizenship.