All I have are heuristics.
In this complex world, there are no clear actions that have a clear outcome. So I have a set of heuristics that have worked before: Based on a number of beliefs. Supported by a set of principles.
I have but heuristics, to meet the needs of the moment as I experience it.
If I am lucky, I am aware of some of those beliefs. And the principles are sound and applicable for the new situation I am in.
If I am extremely lucky, I get to share and discuss those beliefs and principles with another.