Sacred Knowledge
Following the sunnah is somewhat similar to 'drafting cycling.'
Intelligence is determined by it's ability to restrict animalistic desires.
Those with taqwa will be given knowledge and a light within their hearts.
Ask the people of remembrance, if you do not know, Surah Nahl.
Knowledge is what benefits not memorisation, Imam Shafi (rah).
A verse if people follow it, then its sufficient for them, Surah Talaq v2-3.