 Any action proper will include this step of assent to an impression that leads to an impulse, and it is this additional step that distinguishes human action from mere animal behavior. This does not mean that actions require extended and self-conscious deliberation. If you insult my hipster sideburns and I straightaway get angry and punch you in the face, I have assented to the impression that you have wronged me and it would be good to retaliate and cause you pain, even though I haven’t thought it over carefully.