every thing is a feeling of which the mind is conscious
 John Stuart Mill, A System Of Logic, Ratiocinative And Inductive (1843). copy citation

Context

“the term Feeling being of course understood in its most enlarged sense. I. Feelings, Or States of Consciousness. § 3. A Feeling and a State of consciousness are, in the language of philosophy, equivalent expressions: every thing is a feeling of which the mind is conscious; every thing which it feels, or, in other words, which forms a part of its own sentient existence. In popular language Feeling is not always synonymous with State of Consciousness; being often taken more peculiarly for those states which are conceived as belonging to the sensitive, or to the emotional, phasis of our nature, and sometimes, with a still narrower restriction, to the emotional alone, as distinguished from what are conceived as belonging to the percipient or to the intellectual phasis.” source