Voltaire isn't simply scolding us for inaction—he's making something more unsettling: that passivity itself becomes a moral stain, not just a missed opportunity. Most people assume guilt requires commission, that you're only culpable for what you *do* wrong. But he reverses this, suggesting that our failures to act create a kind of debt we carry, one that compounds quietly over time. Consider the colleague who witnesses wrongdoing but says nothing, then sleeps easily because she didn't personally cause the harm—Voltaire would say she's already diminished, whether the boss ever finds out or not. The quote's real power lies in making us uncomfortable with the comfortable philosophy of minding our own business.