"Kant is erroneously viewed as the founder of German philosophy, and an ingenious poet-philosopher, Heinrich Heine, has even drawn a parallel between the different phases of the French Revolution and those of German philosophy, putting next to each other as analogous phenomena Kant and Robespierre, Fichte and Napoleon, Schelling and the Restoration, Hegel and the July Revolution. But the true founder of German philosophy - if one wishes to name a personal representative for the spirit of the age - is none other than whose world view lies equally at the foundation of French social philosophy - Spinoza; and as far as Heine's analogy goes, it is only Kant and Robespierre, i.e. the religious revolution, who are analogous phenomena."

“Humanam impotentiam in moderandis et coercendis affectibus servitutem voco; homo enim affectibus obnoxius sui juris non est sed fortunæ in cujus potestate ita est ut sæpe coactus sit quanquam meliora sibi videat, deteriora tamen sequi.”

“Meum institutum non est verborum significationem sed rerum naturam explicare”

“Hic conatus aliquid agendi et etiam omittendi ea sola de causa ut hominibus placeamus, vocatur ambitio præsertim quando adeo impense vulgo placere conamur ut cum nostro aut alterius damno quædam agamus vel omittamus; alias humanitas appellari solet.”

“veritas norma sui et falsi est”

“Ordo et connexio idearum idem est ac ordo et connexio rerum”

“[B]y Natura naturans we must understand what is in itself and is conceived through itself, or such attributes of substance as express an eternal and infinite essence, that is … God, insofar as he is considered as a free cause. But by Natura naturata I understand whatever follows from the necessity of God's nature, or from God's attributes, that is, all the modes of God's attributes insofar as they are considered as things which are in God, and can neither be nor be conceived without God.”