John locke an essay on human understanding summary
Answers
An Essay Concerning Human Understanding
John Locke’s Essay presents a detailed, systematic philosophy of mind and thought. The Essay wrestles with fundamental questions about how we think and perceive, and it even touches on how we express ourselves through language, logic, and religious practices. In the introduction, entitled The Epistle to the Reader, Locke describes how he became involved in his current mode of philosophical thinking. He relates an anecdote about a conversation with friends that made him realize that men often suffer in their pursuit of knowledge because they fail to determine the limits of their understanding.
Summary: Book I
In Book I, Locke lays out the three goals of his philosophical project: to discover where our ideas come from, to ascertain what it means to have these ideas and what an idea essentially is, and to examine issues of faith and opinion to determine how we should proceed logically when our knowledge is limited. Locke attacks previous schools of philosophy, such as those of Plato and Descartes, that maintain a belief in a priori, or innate, knowledge. He begins by opposing the idea that we are all born knowing certain fundamental principles, such as “whatever is, is.” The usual justification for this belief in innate principles is that certain principles exist to which all human beings universally assent. Locke contends that, on the contrary, no principle is actually accepted by every human being. Furthermore, if universal agreement did exist about something, this agreement might have come about in a way other than through innate knowledge. Locke offers another argument against innate knowledge, asserting that human beings cannot have ideas in their minds of which they are not aware, so that people cannot be said to possess even the most basic principles until they are taught them or think them through for themselves. Still another argument is that because human beings differ greatly in their moral ideas, moral knowledge must not be innate. Finally, Locke confronts the theory of innate ideas (along the lines of the Platonic Theory of Forms) and argues that ideas often cited as innate are so complex and confusing that much schooling and thought are required to grasp their meaning. Against the claim that God is an innate idea, Locke counters that God is not a universally accepted idea and that his existence cannot therefore be innate human knowledge.