who first created empirical evidence
Rolf Reber, together with mathematician Morten Brun and psychologist Karoline Mitterndorfer, all from the University of Bergen, Norway, have reported first empirical evidence for the use of beauty as truth and they have provided an explanation for this phenomenon, based on the processing fluency theory of beauty.
Plato: A Very Short Introduction Aristotle Athens (c.384-322 BCE2) A student of Plato, Aristotle is perhaps the most influential of all the ancient Greek philosophers. He is famous for his empirical approach to studying nature, his theory of Four Causes (material, formal, efficient and final), and his development of formal logic. He was also a tutor for Alexander the Great. Aristotle: A Very Short Introduction