Kanada

The Vaisheshika-sutras were written by Kanada, a philosopher who flourished c. 2nd–4th centuries. The system owes its name to the fact that it admits ultimate particularities (vishesha). The metaphysics is, therefore, pluralistic.

…added seven more qualities to Kanada’s list: heaviness (gurutva), fluidity (dravatva), viscidity (sneha), traces (samskara), virtue (dharma), vice (adharma), and sound. The last quality was regarded by Kanada merely as a mark of ether, whereas Prashastapada elevated it to a defining quality of the latter. He also made the Vaisheshika…

The Sanskrit philosopher Kanada Kashyapa (2nd–3rd century ce?) expounded its theories and is credited with founding the school. Important later commentaries were written by Prashastapada, Udayanacharya, and Shridhara.