Archelaus (philosopher) Archelaus (philosopher) Archelaus (; ; fl. 5th century BCE) was an Ancient Greek philosopher, a pupil of Anaxagoras, and may have been a teacher of Socrates. He asserted that the principle of motion was the separation of hot from cold, from which he endeavoured to explain the formation of the Earth and the creation of animals and humans. Archelaus was a philosopher of the Ionian School, called "Physicus" from having been the first to teach natural philosophy at Athens. This statement of Diogenes Laërtius, is contradicted by Clement of Alexandria, but the two may be reconciled by supposing that Archelaus
Ellen Mitchell (philosopher) rise above, an individual must become a part of society to be able to rise above it. In her book "A study of Greek Philosophy" she claims the object of knowledge in philosophy is the human spirit itself, and truth is a living process which develops and advances in the civilizing course of humanity. Later in the book it reveals that we gain self-knowledge as we gain more experiences in life that affects our knowledge and become who we are. The St. Louis Years Ellen Mitchell (philosopher) Ellen M. Mitchell (1838–1920) was an American philosopher, educator and education reformer. She