H.P. Grice, or Herbert Paul Grice, was a British philosopher known for his work in the philosophy of language and the theory of meaning. Born in 1913, he is best recognized for developing the concept of implicature, which explains how people convey meaning indirectly in conversation. His influential ideas have shaped modern linguistics and communication studies. Grice's most notable contribution is the "Cooperative Principle," which suggests that effective communication relies on speakers and listeners working together to understand each other. This principle is often summarized by four maxims: quantity, quality, relation, and manner. Grice's theories continue to impact fields such as linguistics, philosophy, and communication.