Answer:
Plato, Aristotle and Socrates were the three main philosophers of Ancient Greece. Therefore, they were the main thinkers of the beginnings of Western knowledge, while Greek philosophy served as the basis for the later development of the sciences throughout Europe and the Western world.
Thus, the main postulates of these three philosophers are to a large extent the basis of the theories, hypotheses and knowledge later generated in the Western world, with which they have a fundamental importance in science and philosophy today.