How many philosophers and historians of philosophy have gone along with the academies, burning with the desire to be able to sit there! The Dutch thought and art of the siècle d'or reside not only outside of the academies but also, to a large extent, outside of the universities. Spinoza's example serves for all the others. When declining the proposal of the excellent and honorable Sir J. L. Fabritius, who in the name of the Palatine Elector offers him a chair at Heidelberg, Spinoza reminds him that the freedom to philosophize cannot be limited in any way.