This is a re-post of an entry I had written exactly 4 years ago. I liked it so much I decided to share it again. The ability to read emotions is an important part of the human experience; the only way to successfully navigate through complex social environments. It comes in handy especially if you don the title of psychotherapist or professional poker player. Without it, you are rendered socially inept. You enter the world of the autistic individual.
Thanks to Charles Darwin we now know that it’s not just the eyes that are “the windows to the soul”. He first wrote about the subject of facial expressions in his 1898 book titled The Expression of the Emotions in Man and Animals (the link includes the work in its entirety). In it he described the emotions conveyed in the face as being both universal and “species-specific”.