Charvaka

Charvaka, also known as Lokāyata, was an ancient Indian school of materialism. It is classified as one of the nāstika, or heterodox, schools of Indian philosophy. This means its beliefs differed from the more established religious traditions of the time. Charvaka thinkers focused on the physical world and the things people can experience directly. They did not believe in concepts like a soul, reincarnation, or an afterlife. Instead, they emphasized the importance of the world as it is perceived by human beings.

The school's way of knowing things is called epistemology. Charvaka epistemology relies primarily on perception, which is known as Pratyakṣa. They recognized two types of perception: external and internal. External perception comes from the five senses interacting with worldly objects. Internal perception refers to the inner sense of the mind. While they used other methods, they held that perception was the only truly reliable source of knowledge.

Charvaka thinkers were very cautious about a process called inference. Inference is the act of deriving a new conclusion from observations or previous truths. For example, if a person sees smoke, they might infer that there is a fire. A Charvaka would argue that this conclusion is only conditional. They believed smoke could have many other causes besides fire. Because we cannot always prove the connection between two things, inference is prone to error. To them, truth is often just an accident of inference rather than a guarantee.

The origins of Charvaka are tied to the first millennium BCE. It developed during a period of significant religious and philosophical change in India. Some traditions name the philosopher Brihaspati as the founder of the school. However, many scholars dispute this claim. Some suggest the name comes from a philosopher named Charvaka, a disciple of Brihaspati. The name Lokāyata means "aiming at the world" or "worldly." This name suggests the philosophy was a common outlook among the people.

Because the original Charvaka texts are lost, we learn about them through secondary literature. These include the shastras, sutras, and great Indian epics like the Mahabharata and Ramayana. The school was quite influential and existed as a living philosophy until the 12th century CE. In the 6th century BCE, Charvaka was one of several atheistic traditions. It was a predecessor to other major philosophies like Buddhism and Jainism. It was also one of the first schools to systematize materialism using aphorisms, or short statements.

The meaning of the name "Charvaka" is still a subject of debate. One theory from the grammarian Hemacandra suggests it comes from a root meaning "to chew." This might refer to the philosophy's focus on hedonism, or the idea to "eat, drink, and be merry." Other scholars think it means "agreeable speech." A third possibility is that the name is simply eponymous, named after its founder. Regardless of the name, the school was well-attested throughout ancient Indian history.

Charvaka had a major impact on the broader field of Indian philosophy. Even though many other schools disagreed with them, they forced others to think more deeply. Hindu, Buddhist, and Jain scholars used Charvaka logic to re-examine their own theories. They had to refine their own methods of knowledge to answer Charvaka skepticism. While other Hindu schools accepted between two and six means of valid knowledge, Charvaka remained minimalist. They challenged the entire system of thought by insisting on strict empirical evidence.