George Berkeley Philosophy

George Berkeley was an 18th century thinker famous for "to be is to be perceived" and Principles of Human Knowledge, his greatest work.

Irish philosopher and Bishop of Cloyne, George Berkeley (March 12, 1685 – January 14, 1753) is renowned as the father of philosophical idealism, who showed that the materialism of John Locke and Isaac Newton was unsustainable. His most famous adage is "esse est percipi" ("to be is to be perceived").