Ron Paul has a lot of good ideas about money - now if only he didn't advocate a return to the gold standard. There's not enough gold in the world to support the US economy
Ron Paul sort of advocates the gold standard, but it will make more sense if you know why he does.
One very important reason is that Constitution. There are means to change the Constitution through Amendments. What concerns Ron Paul is that for a very long time, politicians did things regardless of whether they were Constitutional.
The problem is twofold: 1. They swear to uphold the Constitution, and 2. If some limits the Constitution places can be ignored, then what else may be ignored in the future?
It's also a matter of accountability. If people were to amend the Constitution, at least we would have a vote, discussion, and see who is responsible for what.
Ron Paul cannot be said to be for gold per say. The reason is that gold is usually not a good investment: gold mostly stays the same value. However, when money is printed in excess of real production, there is inflation. Gold is only a good hedge against devaluation of the currency. And that is what Ron Paul is really interested in: that organizations do not undermine the value of currency... even if it is for short term goals such as financing one thing or another.
The problem with printing money more money than corresponds with real assets is that whoever prints it first reaps the rewards, but there will be a negative impact later. Think about, for instance, why counterfeiting is seen as undesirable.