Kaṇāda
Founder of Vaiśeṣika — an ancient Indian atomism of substances and categories.
Overview
The founder of Vaiśeṣika, one of the six orthodox (āstika) systems of Hindu philosophy, and author of the Vaiśeṣika Sūtra. He proposed that the physical world is composed of eternal, indivisible atoms (aṇu) of earth, water, fire, and air that combine to form all objects, and he analyzed reality into fundamental categories (padārthas: substance, quality, action, universality, particularity, inherence). His system is a striking Indian parallel to Greek atomism, developed independently.
What they supported — and why
Atomism (aṇu)
SupportedMaterial things are composed of eternal, indivisible atoms that combine in pairs and triads to form larger bodies.
WhyMatter can be divided only so far; the smallest indivisible units must be eternal, since division cannot proceed to nothing.
The categories (padārthas)
SupportedAll that exists falls under basic categories — substance, quality, action, universality, particularity, and inherence.
WhyA complete, systematic ontology requires classifying every kind of real thing and relation.
Realist pluralism
SupportedThere are many real, distinct substances and qualities, knowable by perception and inference.
WhyThe diversity of the world is genuine, not illusory, and can be analyzed into its real constituents.
Causes championed
- Systematic ontology
- Atomistic natural philosophy
- Realist analysis of the world
Issues wrestled with
- What is matter ultimately made of?
- What are the basic kinds of things?
- How is the world's diversity structured?
Hurdles faced
- Deep uncertainty about his dates and life
- A terse aphoristic text requiring later commentary
Works & books
1 catalogued. Status shows how much survives to today.
Vaiśeṣika Sūtra
SurvivesThe founding aphorisms of Vaiśeṣika atomism and ontology, elaborated by later commentators such as Praśastapāda.
The influence network
See Kaṇāda in the map →Influenced by
Influenced
In their words
“Now, therefore, we shall explain dharma.”
— opening of the Vaiśeṣika Sūtra
Legacy
He gave India a systematic atomism and categorial ontology that, joined with Nyāya logic, became a major realist school of Indian philosophy.
Further reading
Cross-checked against these authoritative references.