Spinoza on emotions and freedom

In Spinoza: God, or Nature the universe turned out to be one self-explaining whole in which nothing is contingent. That raises a personal question. If you are a small part of that whole, and every thought and feeling has a cause, what are emotions, and what could freedom possibly mean? Spinoza's answer fills the last three parts of the Ethics, and it is one of the most practical things in philosophy. Short quoted phrases below follow the public-domain Elwes translation (1883); everything else is my paraphrase.

He announces his method in the preface to Part III: the emotions follow from nature's laws just as lines and planes do, so he will study them in the same spirit. Elsewhere he states the aim as not to laugh at human actions, nor lament them, nor curse them, but to understand them.

Part III, proposition 6 says that each thing, as far as it can by its own power, strives to persevere in its being. Proposition 7 adds that this striving is nothing other than the thing's actual essence. A stone resists a change of motion, an organism keeps itself going, a person seeks what sustains them. It is not a frantic will to survive at any price; it is a thing's own nature expressing itself. It sounds like Darwin but is not: Spinoza has no theory of descent or selection (see Evolution, illustrated), and scholars still debate whether to read conatus as a physical principle of inertia, a psychological drive, or both.

An affect is a change in the body that raises or lowers its power of acting, together with the idea of that change. From this he builds three primitives. Desire is the striving aware of itself. Joy is the passage to a greater power of acting, and sadness the passage to a lesser one. Joy is a transition, not a level: you feel it as you rise. Everything else is derived. Love is joy accompanied by the idea of an outside cause, hate is sadness with such an idea, and hope and fear are unsteady joy and sadness tied to an uncertain future. The 48 definitions at the end of Part III read like a tiny instruction set: three primitives plus rules of composition.

One consequence overturns common sense: we do not desire things because they are good, we call them good because we desire them (Part III, P9, scholium).

The key question is whether we are the adequate cause of what happens in us. If we are only a partial cause, with the rest coming from outside and not understood, we are passive and suffer what he calls a passion. If what happens can be understood entirely through our own nature, we act.

On the side of the mind this is the difference between inadequate and adequate ideas. An inadequate idea is partial, "mutilated and confused". His example (Part II, P35, scholium) is the sun, which looks about two hundred feet away. The image is not the mistake; the mistake is not knowing what explains it. Passions come from inadequate ideas, actions from adequate ones. Joy and desire can be actions. Sadness never can (Part III, P59).

Why isn't knowing enough? Part IV is titled human bondage, and its claim is that an affect can be checked only by a stronger opposed affect (IV, P7). A true idea restrains a passion only insofar as it becomes an affect itself. Insight must be felt, not merely held.

In Part II, P40, second scholium, Spinoza ranks knowing in three kinds. His example is the rule of three: given 1, 2 and 3, find the number that stands to 3 as 2 stands to 1. Merchants learn by rote to multiply the second by the third and divide by the first. Students who have seen Euclid's proof know why it works. And with the simplest numbers anyone sees the answer, 6, at a glance.

A reverse engineer knows the three rungs well. You can paste a magic constant from a forum post, derive it from the file format specification, or understand the format so well that the constant is obvious. Whether the third kind is a separate method or reason applied to a particular case is disputed among scholars.

Spinoza denies free will in the sense of a choice that nothing caused. Yet he defines freedom (Part I, Def 7): a thing is free if it exists and acts from the necessity of its own nature alone, and unfree if something else determines it. By that standard only God is wholly free. Humans, being parts of nature, are always partly acted on. But freedom comes in degrees: the more of what we do follows from our own adequate understanding, the freer we are. Freedom is something achieved, not something given.

Part V lists remedies for the passions. First, understanding an affect clearly turns it from a passion into something closer to an action (V, P3). Second, separate the feeling from the thought of its supposed outside cause. Third, see things as necessary (V, P6): if I grasp why a loss followed from its causes, I suffer less, not out of coldness but because it no longer looks like an arbitrary offence. The slogan "freedom is the recognition of necessity" is often credited to Spinoza, but it comes from later writers such as Hegel and Engels. He would add that recognition must become power.

At the summit stands the intellectual love of God (V, P32-36): the joy of understanding things in their place in Nature, from the third kind of knowledge. It asks nothing back, since one who loves God cannot want God to love him in return (V, P19). Spinoza also claims that something of the mind is eternal (V, P23); scholars read this in sharply different ways, but not as a personal afterlife. Blessedness, he says, is not the reward of virtue but virtue itself (V, P42). The Ethics ends with the remark that all excellent things are as difficult as they are rare.

The Stoics make a natural comparison. Epictetus began his Handbook by separating what is up to us (judgments, impulses) from what is not. Like Spinoza, the Stoics held that the world is ordered and that emotions depend on how we see things. But Spinoza criticises them in the preface to Part V, saying experience shows we do not command our passions by will alone. The Stoics aimed to uproot passions that rest on false judgments, while Spinoza thinks affects are natural and can be transformed but not abolished. They also differ on purpose and providence, which Spinoza rejects.

Cognitive behavioural therapy has Stoic roots. Albert Ellis (1950s) and Aaron Beck (1960s) both acknowledged Stoic influence, and Ellis often quoted Epictetus' saying that people are troubled not by things but by their judgments about things. There is no direct line from Spinoza to CBT. There are resemblances: appraisals shape feelings, reappraisal can change them, and in some laboratory studies simply naming an emotion has been found to dampen it. Antonio Damasio's Looking for Spinoza (2003) links Spinoza's body-mind unity to modern neuroscience, though that reading is Damasio's own and is contested.

The differences matter just as much. CBT is a clinical practice tested in trials for specific conditions, and it needs neither determinism nor monism. The Ethics is a metaphysics with an ethical aim, untested in that sense. These are similarities, not identity, and none of this replaces professional help.

Spinoza's advice has the shape of a debugging habit. A passion is a state you cannot explain: something crashed and you blame the nearest cause. Freedom is the slow work of tracing the chain until you can say how it arises, and then, harder, feeling the difference. For the metaphysics underneath, see Spinoza: God, or Nature; for the oldest form of the question, What is existence? A short tour of ontology.