Madhvaon Brahma Sūtra 3.4.34
Dvaita Vedānta
Sūtra
सर्वथापि तु त एवोभयलिङ्गात्
sarvathāpi tu ta evobhayaliṅgāt
Sūtra translation
By all the means (that may be tried) they (the eligible) alone (obtain knowledge); but (not the ineligible) ; from indication of both as to both.
Whatever may be the effort made, only those that are eligible for knowledge obtain it, not others. For there is the indication of both, viz., the eligible Indra obtaining right knowledge and the ineligible Virochana obtaining wrong knowledge, though what was imparted by the preceptor was the same, which is contained in the Sruti, “He who is the sole Lord, absolutely sinless and as such free from old age, death, sorrow, pains of hunger and thirst, whose wishes and thoughts are real, He is to be sought for and thoroughly enquired into ” (Ch. VIII. 7·3).