He was talking of the majority only...

He was talking of the majority only, for he added: "No, not indeed: The earth is never without a divine authority, whether visible and known or hidden and unseen. The existence of such an authority is necessary so that Allah's proofs and arguments may not become invalid. But how many and where are such people? Indeed very few, but very dear to Allah. It is through them that Allah preserves His proofs and arguments.

They pass on their knowledge to their likes and cultivate it in the hearts of their counterparts." Speaking further about these individuals who receive their knowledge from Divine source, Imam Ali said: "Knowledge rushes to them giving them insight into the truth."