2. Radical openmindedness is part of being an intelligent leftist
Consider all things carefully.
Accept nothing upon faith.
Doubt the established order.
Political or philosophical discussions should never feel "reassuring." That's one of the main symptoms of conservative "discussion." There is no room for debate. They spend the entire time patting themselves on the backs. Usually for doing despicable things.
What makes us different as progressive people is our willingness to respect other intelligent opinion not simply because it has a right to exist but also because you might very well be incorrect.
The concept of being incorrect is not really an acceptable position when it comes to conservatives. The beliefs they were taught as young, ignorant children are what they grasp on to their entire lives. This is why xenophobia and group-think are so common among the "right." It's arrested development.