Be as simple as a child

Unless one becomes as simple as a child, one cannot reach divine illumination. Give up your vanity about the worldly knowledge you have acquired, and know it to be futile in the realm of higher truth. Be as simple as a child, and then only you will reach the knowledge of the True.

Only two kinds of people can attain to Self-knowledge: those whose minds are not encumbered at all with learning, that is to say, not overcrowded with thoughts borrowed from others; and those who after studying all the Scriptures and sciences, have come to realize that they know nothing.

Ramakrishna Paramahamsa - Excerpts from Teachings of Sri Ramakrishna