Aristotle' ( , Aristotélēs; 384–322 BCE) was a Greek philosopher born in Stagirus in 384 BCE. His father, Nicomachus, died when Aristotle was a child and he lived under a guardian's care. At the age of eighteen, he joined Plato’s Academy in Athens and remained until the age of thirty-seven, around 347 BCE. His writings cover many subjects, including physics, metaphysics, poetry, theater, music, logic, rhetoric, linguistics, politics, government, ethics, biology, and zoology. Aristotle's writings were the first to create a comprehensive system of Western philosophy, encompassing ethics, aesthetics, logic, science, politics, and metaphysics. Shortly after Plato died Aristotle left Athens. With the request of Philip of Macedonia he became a tutor for Alexander in 356–323 BCE. According to the Encyclopædia Britannica, “Aristotle was the first genuine scientist in history. . . . Every scientist is in his debt.”
Aristotle achieved merit through teaching Alexander the Great. This distinction allowed him many opportunities, including an abundance of supplies. He established a library in the Lyceum which aided in the production of many of his hundreds of books. The fact that Aristotle was a pupil of Plato contributed to his former views of Platonism, but following Plato’s death, Aristotle immersed himself in empirical studies and shifted from Platonism to empiricism . He believed all peoples concepts and all of their knowledge was ultimately based on perception. Aristotle’s views on natural sciences, including philosophy of the mind, body, sensory experience, memory, and biology represent the groundwork underlying many of his works.