Full Idea
Properties are not powers. But properties have powers. They bestow powers.
Gist of Idea
Properties are not powers - they just have powers
Source
David M. Armstrong (Truth and Truthmakers [2004], 10.4)
Book Reference
Armstrong,D.M.: 'Truth and Truthmakers' [CUP 2004], p.141
A Reaction
I think this is the wrong way round. In this view, powers become extremely vague things, ranging from the fine-grained to the hugely broad. It seems to me that powers are precise and real, but properties are the vague unhelpful things.