And when he dreams he does not want to write, he does not have the power to dream he wants to write; and when he dreams he wants to write, he does no… - Benedictus de Spinoza

The idea, which constitutes the actual being of the human mind, is not simple, but compounded of a great number of ideas.

in the case of the given numbers 1, 2, 3, everybody can see that the fourth proportional is 6, and all the more clearly because we infer in one single intuition the fourth number from the ratio we see the first number bears to the second.

If we never were structuralists, we can now explain why: why we seemed to be, even though we were not, why there came about this strange misunderstanding on the basis of which books were written. We were guilty of an equally powerful and compromising passion: we were Spinozists. In our own way, of course, which was not Brunschvicg's! And by attributing to the author of the Tractatus Theologico-Politicus and the Ethics a number of theses which he would surely never have acknowledged, though they did not actually contradict him. But to be a heretical Spinozist is almost orthodox Spinozism, if Spinozism can be said to be one of the greatest lessons in heresy that the world has seen! In any case, with very few exceptions our blessed critics, imbued with conviction and swayed by fashion, never suspected any of this. They took the easy road: it was so simple to join the crowd and shout "structuralism"! Structuralism was all the rage, and you did not have to read about it in books to be able to talk about it. But you have to read Spinoza and know that he exists: that he still exists today. To recognize him, you must at least have heard of him. Let us clarify this business in a few words. After all, to lump structuralism and theoreticism together is hardly satisfactory or illuminating, because something in this combination is always "hidden": formalism, which happens to be essential to structuralism! On the other hand, to bring structuralism and Spinozism together may clarify certain points, and certain limits, as far as the theoreticist deviation is concerned. But then comes the important objection: why did we make reference to Spinoza, when all that was required was for us simply to be Marxists? Why this detour? Was it necessary, and what price did we have to pay for it? The fact is: we did make the detour, and we paid dearly. But that is not the question. The question is: what is the meaning of the question? What can it mean to say that we should simply be Marxists (in philosophy)?