This principle I made up out of my dislike of the usage of labels for people, and in particular everything I tie in to anti-labelism. Anti-labelism to me is being against labelism, in trying not to act in labelist ways. Labelism to me includes things like how labels, alleged even, are used to reject information or ideas from a particular source or sometimes just someone related to the source. I expect people who work in the news and other industries are well aware of this concept, as they precisely focus on labels and judging people, usually for their labels and a mix with skewed information.
Then the second part about actions came in later. But at first as a separate sentence. Because I kept flipping between words and actions, I would often have two sentences. And that is what I plan to do more often, when it is clear that one or the other is more fitting.
But it is also frequent enough that in a particular area, it is important to judge someone on their words and actions. And so in these places I will refer to the entire principle as above.