In the World of Logic and Grammar
Verbs alone are the lifeline of language; this is the opinion of Indian grammarians. But for our logicians (i.e. the proponents of the Nyāya [epistemology] and Vaiśeṣika [ontology] schools of philosophy), the subject indicated by the nominative case (prathamā vibhakti) alone is the lifeline of a language – i.e. the doer alone is the soul of language. The reason for this difference is crystal clear. Grammarians are śabdādvaitis (i.e.