El eje de la relación entre el Estado y los ciudadanos (que no sólo súbditos) es el consenso o «común acuerdo» en el que descansa el contrato de conv… - Benedictus de Spinoza

This endeavour to do a thing or leave it undone, solely in order to please men, we call ambition, especially when we so eagerly endeavour to please the vulgar, that we do or omit certain things to our own or another's hurt : in other cases it is generally called kindliness.

From Descartes and Malebranche onward, the metaphysical value of the “idea” or archetype steadily deteriorated. It became a “thought,” an internal condition of cognition, as clearly formulated by Spinoza: “By 'idea' I understand a conception of the mind which the mind forms by reason of its being a thinking thing.” Finally Kant reduced the archetypes to a limited number of categories of understanding.

Now that I have sketched my main purpose, it is time to ex­plain why a book dedicated to new ideas on the nature and signif­icance of human feeling should invoke Spinoza in the title. Since I am not a philosopher and this book is not about Spinoza's phi­losophy, it is sensible to ask: why Spinoza? The short explanation is that Spinoza is thoroughly relevant to any discussion of human emotion and feeling. Spinoza saw drives, motivations, emotions, and feelings—an ensemble Spinoza called affects—as a central aspect of humanity. Joy and sorrow were two prominent concepts in his attempt to comprehend human beings and suggest ways in which their lives could be lived better.