"Essays Concerning Human Understanding, Volume 2 MDCXC, Based on the Second Edition, Books 3 and 4" is the seminal work of the famous philosopher John Locke. In this book, the author examines the role of experience in the formation of a person's mind and knowledge. It explores questions about the origin of ideas, the possibilities and limits of understanding, and the role of language in mutual understanding. Locke addresses the question of the relationship between reason and experience, creating an important dialogue between philosophy and psychology. This book is essential reading for anyone interested in the philosophy of human cognition and understanding.