Monday, 26th March, 2018, 09:22 AM
Ha! That's extremely similar to an idea I once had for a new RPG system. The primary stats for each character were Physical, Mental, and Spirit, each with an Active expression and a Passive expression.
(Okay, in a way that was just renaming ye olde D&D stats...)
I wanted each character to cover two 'roles', represented by combining a Primary stat and a Secondary stat. I.e. Pp, Pm, Ps, Mp, Mm,...