Psychology is the science of behavior and mind, including conscious and unconscious phenomena, as well as feeling and thought. It is an academic discipline of immense scope and diverse interests that, when taken together, seek an understanding of the emergent properties of brains, and all the variety of epiphenomena they manifest. As a social science it aims to understand individuals and groups by establishing general principles and researching specific cases.
The old distinctions among emotion, reason, and aesthetics are like the earth, air, and fire of an ancient alchemy. We will need much better concepts than these for a working psychic chemistry.
The music of the soul is also the music of salesmanship. Exchange value, not truth value counts. On it centers the rationality of the status quo, and all alien rationality is bent to It.
Herbert Marcuse, One Dimensional Man (1964), p. 57
