They Err from Ignorance
This week you are going to study one of the most practically useful ideas in all of Stoic philosophy: that people who behave badly do so out of ignorance, not malice. The Stoics called this "they err involuntarily" (in Greek, the idea traces to Socrates and is woven through Stoic thought as the principle that no one does wrong willingly, Greek: "oudeis hekon hamartanei"). What that means in plain words is this: when someone hurts you, acts selfishly, or causes harm, they are almost always confused about what is truly good, not evil at the core. Learning to see difficult people through this lens does not mean excusing bad behaviour; it means understanding it clearly enough that you can respond with wisdom instead of rage.
Passage
From this we come to realize that since Nature is the source of right, it is not in accord with Nature that anyone should take advantage of his neighbour's ignorance. And no greater curse in life can be found than knavery that wears the mask of wisdom. Thence come those countless cases in which the expedient seems to conflict with the right. For how few will be found who can refrain from wrong-doing, if assured of the power to keep it an absolute secret and to run no risk of punishment!
— Cicero, On Duties 3.72
Reflection
Cicero today warns about a specific and dangerous kind of ignorance: exploiting someone else's. When a person uses another's lack of knowledge to gain an advantage, they are committing a wrong that is especially corrosive because it wears a respectable face. Cicero calls this knavery masked as wisdom, and he says it is the greatest curse in life. This sits inside the week's concept in an interesting way. The involuntary error principle asks you to be patient with people who err from genuine confusion. It does not ask you to be naive about people who err from self-interest dressed up as ignorance. There is a difference between someone who does not know better and someone who knows perfectly well but hopes you do not. Recognising that difference is part of clear seeing, which is what the whole concept is training you toward.
Go deeper
Is there a situation in your life where you have been telling yourself someone 'just didn't know' when the evidence actually points to deliberate self-interest, and what would it mean to see that clearly?
Practice
Honest Assessment
Think of one difficult person in your life. Spend five minutes writing two columns: evidence they are acting from genuine ignorance or confusion, and evidence they are acting from self-interest while knowing better. Look at both sides without rushing to a conclusion. Notice which column you naturally want to fill faster.