Imaam Abu Haatim ibn Hibbaan رحمه الله said:

"Intelligence is the remedy of the hearts, the tool of the scholars, the seed for the tilth of the Hereafter, the crown of the believer in the worldly life, and his readiness for any calamity. Whomever lacks intelligence, then gaining power shall never increase him in honour, nor shall wealth ever exalt him."

Rawdah al-`Uqalaa [p.56]

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