Full Idea
Behind your thoughts and feelings stands a powerful commander, an unknown wise man - he is called a self. He lives in your body; he is your body.
Gist of Idea
The powerful self behind your thoughts and feelings is your body
Source
Friedrich Nietzsche (Thus Spake Zarathustra [1884], I.4), quoted by Kevin Aho - Existentialism: an introduction 5 'Creature'
Book Reference
Aho,Kevin: 'Existentialism: an introduction' [Polity 2014], p.76
A Reaction
I find Nietzsche's view of the self very congenial, though I tend to see the self as certain central functions of the brain. The brain is enmeshed in the body (as in the location of pains).