Introduces Locke's philosophy in a full, clear account of his theory of knowledge, his political theory and his conclusions on ideas and experience, substance and causality, the nature of understanding, language and thinking, and judgment and opinion. The author also criticizes Locke's thinking, viewing it in the light of philosophical developments since the 17th century and emphasizing those items that have permanent value. His introductory chapter contains a biographical sketch of Locke and his conclusion attempts to assess the ernormous influence of Locke's ideas.