What needs to be said? Anybody who has put forth great effort to try and change themselves (or somebody else) will know that "talk is cheap"—while wise words will help someone who has already decided to turn away from their old mistaken ways, speaking much is wasted effort on someone who has decided to not listen. In fact, saying more may have the opposite effect—we call this nagging or pestering people.

A lot of marketing/"communication" training these days goes against this idea. Rather than simply giving people what they ask for (e.g. you give a loaf of bread to someone who can see/smell that the bread is good), we learn techniques for telling people that they "need" things that they don't need or engineer desires/wants within people.

I used to get excited about a lot of products and technologies. I was interested in how I might "improve the world" by developing something new and exciting. The longer I've studied technology, however, the more I've come to the conclusion that there really isn't much for me to do in the area of research (I was a graduate student). We already have all the tools we need to "solve" the problems of the world. It is not a lack of technology, but rather a lack of wisdom in how to use the tools/materials/etc that we already have which prevent us from living what is called the Blessed life in the Psalms.

Blessed is the man that walketh not in the counsel of the ungodly, nor standeth in the way of sinners, nor sitteth in the seat of the scornful. (Psalm 1:1)

When we misdirect our thoughts and use what we've been given to chase vain desires, we labor in futility.