Full Idea
The self of everyday Dasein is the they-self [das Man-selbst], which we distinguish from the authentic self - that is, from the Self which has been taken hold of in its own way.
Gist of Idea
There is an everyday self, and an authentic self, when it is grasped in its own way
Source
Martin Heidegger (Being and Time [1927], I.4.27)
Book Reference
Heidegger,Martin: 'Being and Time' [Blackwell 1962], p.167
A Reaction
To a novice this sounds like a requirement for increased self-consciousness during daily activity. 'Be a good animal, true to your animal self' said one of Lawrence's characters.