prayogaḥ yasya yadrūpaṃ vyavasthitau nimittaṃ nāsti na tat tathā prekṣāvadbhir vyavahartṛbhir vyavasthāpyate, tadyathā avidyamānagoprajñaptinimittabhūtakakudādisamudāyaḥ karko gotvena
When something lacks the basis for being established in a certain form, intelligent persons do not accept it as having that form—just as a karka [white horse], which lacks the collection of dewlap and other features that constitute the basis for the designation "cow," [is not accepted] as having cowness.