Answer: By using the study of their environment to overcome the belief that life, diseases and fate were controlled by gods.
Explanation: The Greeks held strong beliefs in mythological beings and gods who interfered with human lives and controlled their fates. Early Science in Greek civilization dates back to Thales, who lived before Aristotles. Thales predicted an eclipse and categorized the states of matter into liquid, gases and solids.
Aristotle who studied such fields as biology and physics, came up with identifying the building blocks of Logic: that arguments which are logical form a logical conclusion.
Hippocrates revolutionized the field of medicine by stating that diseases were not punishments inflicted by gods as was earlier believed but are natural occurrences that have causes that can be understood.
