Paganism generally lacks dogma, especially if you're not practicing with a group. Paganism as a broad, expansive category doesn't set down many rules about things like this, but I think there are points that most practitioners would agree with, even though they aren't written and dogmatic. The three you mentioned would be supported by most Pagans, with the greatest emphasis probably being on the last one, calmness. Much of Paganism is about seeking harmony with the Earth and the environment. It is not so much about self-control, as just having inner peace. Self-control is of course a part of this, but other religions end up attaching other thingsd to the concept of self-control that Pagans don't (such as the concepts of sin).
Regardless of what Paganism in general thinks, I've always had my own Code which has points very similar to those you put here. The points here, though, are generally not among the most important of my Code, but rather this one instead:
Commentary Five
Treat the Earth and all who dwell upon it with respect and tolerance, without exception. Tolerance and respect are the best vaccine against the discords of anger and hatred.