What is Rationalism (Rationality) in Antiquity?July 1, 2021
The tradition of rationalism can be started with the Elea School. It can be said that the first rational philosopher is Parmanides.
According to him, sensations cannot be the basis of knowledge because they are changeable, on the contrary, the unchanging principles of the mind can be the basis of knowledge. Zeno of Elea furthered the rationality of his teacher, Parmanides. The idea of rationalism is grounded behind the paradoxes that prove the unreliability of the senses.
Plato, on the other hand, is known as the name that shaped rationalism as a major theory with his theory of ideas. Plato is also one of the leading names of the deductive method known as the methodological principle of rationalism. It should also be noted that Aristotle is one of the founding names of rationalism.