On 24 October 2019, the anniversary symposium "400 Years of Kepler's Book - The Freedom of Science Today" took place at Johannes Kepler University Linz. Among the speakers was Professor Ferscha, who gave a talk on the "Harmonices mundi".

"Kepler is still an idol and role model today. For him, scientific knowledge, which can change daily, was the highest good," says Alois Ferscha about the namesake of the University of Linz.