hadith
9967
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Imam Ali (AS) said, Governing ones soul is the best [form of] administration and the eminency of knowledge is the most honourable pre-eminence.
الإمامُ عليٌّ (عَلَيهِ الّسَلامُ) : سِياسَةُ النَّفْسِ أفْضَلُ سِياسَة وَ رِياسَةُ الْعِلْمِ أشْرَفُ رِياسَة