"...He even felt that the highest compliment he could confer on his friend Moses Mendelssohn, whom he greatly admired, was to call him a "second Spinoza." Mendelssohn, one of the fathers of the modern German enlightenment, was an adherent of Leibnitz. As such he could not be a follower of Spinoza, although he, too, admired his personality. Furthermore, he failed to understand Spinoza, for he could never free himself from Bayle's presentation of Spinoza's doctrine. Nevertheless, this very Mendelssohn, by his controversy with Jacobi about Lessing's relationship to Spinoza, was instrumental in making the latter a potent force in German letters. It is interesting to observe that even those thinkers who dedicated their lives to the cause of anti-Spinozism paid the highest tribute to his personality."

“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.”