The world is changed by your example, not by your opinion. (Paulo Coehlo, Brazilian lyricist and novelist)
It’s probably not true of every society, but we’ve been hearing a lot lately from some highly opinionated people. (Example: election campaign rhetoric, which, thankfully, ends today). How often we might think, “Please stop talking so much and show me how you live and act honorably.” Words are important, but only if they are backed up by integrity in behavior.