Nothing is less Greek than the conceptual web-spinning of a hermit—amor intellectualis dei—after the fashion of Spinoza. - Benedictus de Spinoza

The very starting-point of Spinoza, the search and discovery of the cause of causes, is hateful to Kant, who states that scientists err when they follow this path. He presumes and presupposes nothing, not even the possibility of the oneness of nature. Transcendental philosophy to him is only the theory of recognition of the possibility of nature itself. Spinoza, on the other hand, presumes and presupposes everything God, nature, its phenomena, and their different relationships. He begins with the supreme cause, without knowing whether it is and what it is. He sets out rationalistically and dogmatically while Kant begins critically. Kant is complicated, abstruse, and often dark, while Spinoza is simple, plain, and full of light. Kant's philosophy can be accepted either entirely or partly, but Spinoza's philosophy can be accepted only entirely. There can be no left or right Spinozists as there are left and right Kantians or Hegelians. In spite of its mathematical form, Spinozism is, in the last analysis, an experience of man's soul, while Kantianism is the product of man's critical mind. The soul is often disturbed and subject to varying moods, while man's mind is more rigid. Feeling is common to all people, but intellectual meditations are the heritage of the few. We can thus understand Spinoza's influence upon the entire fabric of modern culture with the exception of the plastic arts and music, and Kant's influence upon philosophy alone. Spinoza created a new world-picture, Kant only a new school of philosophy. Kant definitely established the frontiers of the human mind, but Spinoza reconstructed a new world out of an old one. Everyone is interested in Spinoza, but only philosophers are concerned with Kant.

The greatest secret of monarchic rule...is to keep men deceived and to cloak in the specious name of religion the fear by which they must be checked, so that they will fight for slavery as they would for salvation, and will think it not shameful, but a most honorable achievement, to give their life and blood that one man may have a ground for boasting.

It may be observed, however, that Spinoza was not the first prominent monist and pantheist in modern Europe. A generation before him Bruno conveyed a similar message to humanity. Yet Bruno is merely a beautiful episode in the history of the human mind, while Spinoza is one of its most potent forces. Bruno was a rhapsodist and a poet, who was overwhelmed with artistic emotions; Spinoza, however, was spiritus purus and in his method the prototype of the philosopher.