hadith
1426
۞
Imam Ali (AS) said, Struggling against the self with knowledge is a symbol of intelligence.
الإمامُ عليٌّ (عَلَيهِ الّسَلامُ) : جِهادُ النَّفْسِ بِالعِلْمِ عُنْوانُ العَقْلِ