I'm flexibly unbending in my morals.
What I mean is the principles guiding my morals won't change, or else change very slowly (ie be kind, generous, respectful, the Golden Rule, etc). But my principles guide my decisions in context, so depending on the people involved and other factors, and may act differently (not black-and-white) and still totally follow my morals.
I think that's what most are saying here. As we grow and change, our perspectives broaden, and we consider things we wouldn't have when we were younger, we make better choices.