George William Green  (         Britain)
Rāja-vidvā:  The King of Knowledge
one subject and another in another subject. This knowledge, however, is sovereign over all others, and all other knowledge is subject or relative to it. The word  rāja-guhyam  indicates that this sovereign knowledge is very confidential, and the word  pavitram  means that it is very pure. This knowledge is also  uttamam ;  ud  means “transcend,” and  tama  means “darkness,” and that knowledge which surpasses this world and the knowledge of this world is called  uttamam . It is the knowledge of light, and darkness has been separated from it. If one follows this path of knowledge, he will personally understand how far he has progressed down the path of perfection ( pratyakṣāvagamam dharmyam ).  Susukham kartum  indicates that this knowledge is very happy and joyful to execute. And  avyayam  indicates that this knowledge is permanent. We may work in this material world for education or riches, but these things are not  avyayam , for as soon as this body is finished, everything else is also finished. With death, our education, advanced degrees, bank balances, family—everything—are all finished. Whatever we’re doing in this material world is not eternal. However, this knowledge is not like that.
nehābhikrama-nāśo ’sti pratyavāyo na vidyate svalpam apy asya dharmasya trāyate mahato bhayāt
“In this endeavor there is no loss or diminution, and a little advancement on this path can protect one from the most dangerous type of fear.” (Bg. 2.40)