Perhaps no book in this generation has had a more profound impact on our intellectual and spiritual lives than The Road Less Traveled. With sales of more than 7 million copies in the United States and Canada, and translation into more than 23 languages, it has made publishing history, with more than 10 years on The New York Times bestseller list. Told in a voice that is timeless in its measure of understanding, The Road Less Traveled continues to enable us to explore the nature of loving relationships and leads us toward a new serenity and fullness of life. It helps us determine how to distinguish dependency from love; how to become a more sensitive parent; and ultimately how to become one's own true self. Recognizing that "Life is difficult" and that the journey to spiritual growth is a long one, Dr. Peck never bullies his readers, but gently guides them through the hard and often painful process of change toward a higher level of self-understanding. Combining profound psychological insight and

2013 Reprint of 1941 Revised and Enlarged Edition. Exact facsimile of the original edition, not reproduced with Optical Recognition Software. Tarski is considered one of the five greatest logicians of all time, alongside Aristotle (384-322 BCE), Boole (1815-1864), Frege (1848-1925) and G?del. This book, together with Aristotle's "Prior Analytics" and Boole's "Laws of Thought," should form the core of any logic library. This classic undergraduate treatment examines the deductive method in its first part and explores applications of logic and methodology in constructing mathematical theories in its second part. A thought-provoking introduction to the fundamentals and the perfect adjunct to courses in logic and the foundations of mathematics. Exercises appear throughout.