Il est contre le bon sens de mettre une enveloppe précieuse à des choses de néant ou de peu de valeur. - Benedictus de Spinoza

Spinoza remained throughout his life, and well into the eighteenth century, a thinker whom one could admire only in secret, hiding one's sympathy just as his Marrano antecedents had concealed their wayward Jewishness. Open admiration could destroy even the most established of reputations, well into the eighteenth century's so-called Age of Reason. In the 1780s, for example, Friedrich Heinrich Jacobi launched a generalized attack on Enlightenment thought by claiming that the late poet Lessing had been a closet Spinozist, a charge sufficient to compromise the entire movement for which Lessing had been a leading spokesman. Jacobi even went after Immanuel Kant and his successors, arguing that "consistent philosophy is Spinozist, hence pantheist, fatalist, and atheist."

You know that I do not share your opinion in this matter. That Spinozism and Atheism are to me two different things. That when I read Spinoza I can only explain him by reference to himself and that if it came to naming a book which, of all that I know, most agrees with my way of seeing things, then I would have to name the Ethics—even though by nature I do not share his way of seeing things. [Original in German: Du weißt daß ich über die Sache selbst nicht deiner Meinung bin. Daß mir Spinozismus und Atheismus zweyerlei ist. Daß ich den Spinoza wenn ich ihn lese mir nur aus sich selbst erklären kann, und daß ich, ohne seine Vorstellungsart von Natur selbst zu haben, doch wenn die Rede wäre ein Buch anzugeben, das unter allen die ich kenne, am meisten mit der meinigen übereinkommt, die Ethik nennen müsste.]

Spinoza is the originator of speculative philosophy, Schelling its restorer, Hegel its perfecter.