In this classic work of philosophy, Peter Browne challenges the prevailing views of his time on the nature of knowledge, arguing that human understanding is limited and fallible. Drawing on the works of Descartes, Hume, and Locke, he sets out a compelling case for the need to embrace uncertainty in our efforts to comprehend the world around us. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.