According to Baha'u'llah, Who is a learned person and who is an illiterate?

Consider, how can he that faileth in the day of God’s Revelation to attain unto the grace of the “Divine Presence” and to recognize His Manifestation, be justly called learned, though he may have spent aeons in the pursuit of knowledge, and acquired all the limited and material learning of men? It is surely evident that he can in no wise be regarded as possessed of true knowledge. Whereas, the most unlettered of all men, if he be honoured with this supreme distinction, he verily is accounted as one of those divinely-learned men whose knowledge is of God; for such a man hath attained the acme of knowledge, and hath reached the furthermost summit of learning.

(“The Kitáb-i-Íqán” (Wilmette: Bahá’í Publishing Trust, 1983), pp. 145–146)

https://reference.bahai.org/en/t/c/SCH/sch-11.html