sorry to followup on my own post. Looking through <A History of
Mechanics> by Rene Dugas I found the following:
"In this way Newton multiplied the definitions and concepts.
Instead of deducing the concept of motive force from the
concepts of mass and acceleration by using the law (1),
he consciously regarded the mass and the force as two
primarily distinct notions" -- Dugas p. 203, Dover ed.
Brian Harper
Associate Professor
Applied Mechanics
The Ohio State University
Feynman's Second Law:
"everything stands still except when a gorce is acting"