According to Aristotle, everything we pursue or aim at is good. Aristotle (384 - 322 BC) a Greek philosopher and scientist was a student of Plato and followed his Socrates' Philosophical tradition. Nevertheless, Aristotle's emphasis was quite different from Plato's. .
Aristotle (384 - 322 BC) a Greek philosopher and scientist shared with Plato the distinction of being the most famous of the ancient philosophers. Nevertheless, Aristotle's emphasis was quite different from Plato's. He was versed in a broad range of subjects including science, anatomy and philosophy. He established the first empirical guidelines for the conduct of scientific investigations. .
Aristotle is also credited with the use of logic as a method for conducting research. He devised the idea of dividing areas of study into separate categories with specific methods of study for each field, and wrote over 400 books on every branch of learning, including logic, ethics, politics, metaphysics, biology, physics, psychology, poetry, and rhetoric. .
Among the texts are treaties on logic, called Organon or "instrument-, because they provide the means by which positive knowledge is to be attained. His treatment of the Prime Mover, or first cause, as pure intellect, perfect in unity, immutable, and as he said, "the thought of thought-. To his son Nicomachus he dedicated his work on ethics, called the Nicomachean Ethics, this is the first systematic treatment of ethics in Western civilization.
Aristotle's principal doctrines, or theories disputed Plato's theory. He reasoned that form cannot exist apart from particular objects, or as he puts it, "No form without matter, no matter without form-. Accordingly, Aristotle rejected the notion that the Good exists independently of daily experience and human personality. In his view moral principles exist in the daily activities of human life and can be discovered by examining those activities.