The line 'worry not about poverty but about unrest' is often cited in debates on wealth inequality.
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From 《论语·季氏》: 不患寡而患不均,不患贫而患不安。盖均无贫,和无寡,安无倾 (Worry not about scarcity but about unequal distribution; worry not about poverty but about unrest. For with equal distribution there is no poverty, with harmony no scarcity, with stability no overthrow). Confucius's classic statement of distributive justice — routinely quoted by Chinese policymakers when discussing 共同富裕 (common prosperity).
usage
Almost always paired with the preceding 不患寡而患不均. 患 here = 'to worry about,' not 'disease.' The whole passage is the locus classicus for Confucian political economy.