My dear Uddhava, an intelligent person should never take to literatures that do not contain descriptions of My activities, which purify the whole universe. Indeed, I create, maintain and annihilate the entire material manifestation. Among all My pastime incarnations, the most beloved are Kṛṣṇa and Balarāma. Any so-called knowledge that does not recognize these activities of Mine is simply barren and is not acceptable to those who are actually intelligent.