"Neokantianism represents in the last analysis nothing but a certain academic line of thought, which has supplied us with a better knowledge of Kant and a useful literature of educated people. Agnosticism, on the other hand, on account of its diffusion among the people, is an actual symptom of the present condition of certain social classes. The socialists would have good grounds for believing that this symptom is one of the evidences of the decadence of the bourgeoisie. It certainly stands in marked contrast to the heroic devotion to truth shown by the thought of the precursors of modern history, such as Bruno and Spinoza, or to that conventional assertiveness, which was typical of the thinkers of the 18th century, until the classic German philosophy gradually came upon the scene."

“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.”