I came across this book in the mid/late 80's. I skimmed through the Preface and was so completely overwhelemed by the profundity in the preface alone that I immediately bought the book. I loaned this book out so many times that it finally didn't come back. By then it was out of print. How great was my rejoicing ;-) when I ran across the new edition a few years ago. I immediately bought several copies. You should too. Mason is one of the few people I would like to meet and personally thank for the impact on my life. (My wife is even more grateful!)