1. History and Overview of Psychology
... the Middle Ages. In the ancient world psychology emerged and was developed as a doctrine of the soul. Thus, the ancient philosopher Heraclitus of Ephesus (about 544 - about 480 BC) taught that the soul is one of the changing conditions of fire that is in perpetual motion and is a fundamental principle of material existence. Democritus (about 460 - 370 BC) believed that "the soul is ... the principle motive" "is a special kind of fire and heat" and consists of spherical, fire moving atoms - tiny, indivisible particles of matter further, finer than atoms body. He denied the ... immortalit...
- Word Count: 4386
- Approx Pages: 18
- Has Bibliography
- Grade Level: Undergraduate