I do not think it is necessary for you to return to your university for taking further education. Your education is to be found in our books, the
material education is finished. If you want to teach in universities and colleges, they must accept us on our high degree of Vedic learning, not on our so-called credentials. They must accept our system of scholarly learning from the spiritual master. So do not bother yourself anymore with this idea but go on learning from our own scriptural evidence how great is the supreme science. Your depth of understanding it will be the credentials, let them accept us on that basis.

(Srila Prabhupada, Letter to: Pusta Krsna – London 5 August, 1972)