Excerpt from On the Methods of Acquiring Knowledge: An Introductory Lecture to the Course of the Institutes of Medicine, for the Session 1838-39, Delivered in the University of Pennsylvania, November 6, 1838This painfulness of mental suspense is experienced in the feverish anxiety and irritation felt, when, in journeying in an unknown quarter, the road unexpectedly divides into different routes, without an indication as to the direction leading to the place, where shelter and repose, are to be found.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.