Eight Tips to motivate, or should I say nine?

In this Dutch article on Managers Online you will find eight tips from Phil Kleingeld, CEO of Motivaris.
The most important tip is that you can not motivate other, you can only support their own motivation by creating the right conditions.
The other eight tips are:

1. Using immaterial rewards lasts longer
2. Let people decide how the will work
3. Listen to ideas
4. Keep people informed
5. Use concrete goals and do not forget to use tip 4
6. Give clear compliments, as soon as you see something done well
7. Be consistent towards others and in your own behavior
8. Plan useful meetings

The question I have after reading those nine tips is: What is the founding idea?
One answer I know from scientific research is that people like having their lives in their own hands. Even babies like toys they control more than toys controlled by others.
You can also conclude that people like to motivate themselves, by the fact that children playing games like to play by their own rules. Looking at the reaction grown-ups give to this “childish” behavior, it seems that grown-ups also would rather play by their own rules. The solution to solve this conflict is agreeing to rules beforehand and strictly adhering to those rules. If you break the rules you are accused of being a cheat.

In a way it all seems very simple. If you abide by the rules, explicitly or implicitly agreed upon, everybody is motivated to play along.