Full Idea
For Aristotle, for us to be responsible for what we do, our action has to somehow reflect our motivation.
Gist of Idea
We are responsible if our actions reflect our motivation
Source
report of Aristotle (Eudemian Ethics [c.333 BCE], 1224a07) by Michael Frede - A Free Will 2
Book Reference
Frede,Michael: 'A Free Will' [Univ of California 2011], p.25
A Reaction
This sounds like 'mens rea' in law - meaning to do the thing you did. But we can obviously be responsible for things through neglect, for example.