This book contains the papers presented at the annual meeting of the Spinoza Seminar that took place at the Faculty of Philosophy of the UNED on March 13 and 14, 2009, as well as the presentation of the painting of Espinosa painted by Sorolla from the Donation Simarro and belonging to the artistic collection of the Complutense University, which took place in El Escorial in the summer of 2008. The works are divided into four sections: politics, science, the projection of Espinosa in the Enlightenment and the iconography of Espinosa, and they place Espinosa in his century, highlighting his anomalous character in relation to the rest of the authors around him. Espinosa did not adapt to the crisis, but made an effort to understand it without giving in to his ideals, which allowed the Renaissance illusions to develop in the illustration, overcoming the hiatus of the Baroque crisis.