No one can be considered intelligent without understanding the science of God, which includes a description of the negative results of those who have forgotten their eternal relationship with Him. There are many so-called wise men in the world, but although considering themselves to be most intelligent, they generally do not surrender to the supreme intelligence of the Lord. Thus they concoct varieties of philosophies according to their positions within the modes of nature. However, one cannot escape the influence of material nature through philosophy generated from that same illusory nature. Liberation is achieved by perfect knowledge coming from the spiritual platform, the kingdom of God. By faithfully hearing from Lord Kṛṣṇa and His authorized representatives one can easily achieve liberation and go back home, back to Godhead.