God is eternal and thus His teachings must also be eternal. God is universal and thus His knowledge must also be universal. That knowledge, which is eternal and universal, comes from God, and that which is not eternal (recently created) and not universal (cannot exist beyond this planet) is man- made knowledge.
Raman (Radhika Raman Das) joined ISKCON in 2003 and got initiated by HH Bhakti Caitanya Swami Maharaj in 2011. As the Editor in Chief at "The Vaisnava - Online Magazine", he helps readers around the world hone in their Spiritual Curiosity, express their unique realizations as aspiring Vaisnava writers and enthusiasts, as well as to spread the digital seed of Srila Prabhupada's mission to spread Krishna Consciousness all around the globe.