MÉTODO (methodus) Dada la existencia de una fuerza innata o potencia de pensar (TIE 31 y 37) capaz de generar ideas adecuadas, el método consiste en … - Benedictus de Spinoza

You compare Cardozo with Spinoza; but as far as I can judge by your book there is no intellectual comparison. Spinoza was not soft. I have been all my life long a fervent disciple of Spinoza precisely on account of his firmness, of his uncompromising naturalism. Yet even he leaves out the three traditions which, however false their cosmology, seem to me morally sound: the Greek, the Catholic, and the Indian. I am therefore not a disciple of Spinoza in his ideal of human life: It leaves out poetry, art, traditional religion, military and constructive patriotism. His society would be a tame society, where there would be no masters, but all would be voluntary slaves. Perhaps you feel something of my difficulty when you point out that "art" is an indispensable ingredient in everything human.

...This contrariety between Reason and Necessity, which Spinoza threw out in so strong a light, I, strangely enough, applied to my own being; and what has been said is, properly speaking, only for the purpose of rendering intelligible what follows. [Original in German: Diesen Gegensatz, welchen Spinoza so kräftig heraushebt, wendete ich aber auf mein eignes Wesen sehr wunderlich an, und das Vorhergesagte soll eigentlich nur dazu dienen, um das, was folgt, begreiflich zu machen.]

Do not be mistaken about the word “Substance.” Spinoza took it in its purest meaning, and had to take it in that way if he wanted to proceed geometrically and set down a primitive notion as a basis. What is Substance but a thing which is self-dependent, which has the cause of its existence in itself? I wish that this pure meaning of the word could have been introduced into our philosophy. In the strictest sense, nothing in the world is a Substance, because everything depends on everything else, and finally on God, who therefore is the highest and only Substance. This geometrical conception could not have become generally adopted in a philosophy which must preserve its popular character, for we, in all our dependence yet consider ourselves independent, and in a certain sense, as we shall soon see, we may so consider ourselves.