It is a sentence which needs to be held constantly under your eyes because it represents both the wording of a fundamental truth and the fundamental principle of a certain behaviour.
It is what makes the individual able to act in the most effective way.
Unlike the strategy -which is personal- parastemata are over-individual. Its coordinates are mainly geopolitical and related to space and time.
Beware: it is an extremely dangerous conceptual object: parastema is a wording of truth thus it generates power relationships immediately.
It is really important to keep in mind that parastemata are not immutable. They are rather a product of history connected to a context, a time and a place. They are effective only within a certain scenario. It is therefore necessary to renew them.