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Gulistān [Rose Garden, گُلِستان], ch. 8 "Rules for Conduct in Life," Maxim 82 (1258) [tr. Gladwin (1806)] - Sa'adi | WIST Quotations
Whoseover interrupts the conversation of others to make a display of his own wisdom, certainly betrays his ignorance. Alternate translations: Whoever interrupts the conversation of others to display the extent of his wisdom, will assuredly discover the depth of his folly. [tr. Eastwick (1852), #82] Who interrupts the conversation of…