AgoraAn open square of thought

Work · Empiricism, Enlightenment & Liberalism

An Essay Concerning Human Understanding

1689 · by John Locke

No innate ideas: all knowledge comes from experience.

Open in the star map

Introduction

Locke says in the preface that the Essay began around 1670 with a discussion among five or six friends that made him ask what our understanding is fit to deal with. Twenty years later it appeared, dated 1690, in four books. Book I attacks the doctrine of innate ideas, Book II derives all ideas from sensation and reflection and distinguishes simple from complex ideas and primary from secondary qualities, Book III deals with words and Book IV with knowledge, probability and faith. The chapter on personal identity was added in the second edition of 1694. The image of the mind as “white paper” comes from Book II.

Read the full text

Free full text, often an older edition or translation

Connections

Criticizes

Taken up in

Criticized in

More works by John Locke

Sources: Wikipedia · Wikidata

As of November 2026 · Improve this page · How Agora is made

Open in the star map