Here is an excerpt:
Here’s how to speak in a polity where we loathe each other. Let this be the Law of Parsimonious Claims:
1. Say nothing you know to be untrue, whether to deceive, confuse, or, worst of all, encourage a wearied cynicism.
2. Make mostly falsifiable assertions or offer prescriptions whose outcomes could be measured, always explaining how your assertion or prescription could be tested.
3. Whereof you have no evidence but possess only moral intuitions, say so candidly, and accept you must coexist with people who have different intuitions.
4. When evidence proves you wrong, admit it cheerfully, pleased that your mistake has contributed to the general progress.
Finally, as you listen, assume the good faith of your opponents, unless you have proof otherwise. Judge their assertions and prescriptions based on the plain meaning of their words, rather on than what you guess to be their motives. Often, people will tell you about experiences they found significant. If they are earnest, hear them sympathetically.
The info is here.