Why does it have to be?

Some of you have left some very kind comments on my blog. I thank you all; it's not that I'm any smarter than the next guy, I just choose to think rationally on economic matters. Capitalism's Truths are real simple: everything has a cost, cost is more than price, Socialism is a proven failure..Etc. The question you should ask yourself and others is: Why isn't everyone in the media teaching these principles since they are just common sense?