Some readers are going to snort at the idea of making so much over a hackneyed proverb like “Don’t cry over spilt milk.” I know it is trite, commonplace, a platitude. I know you have heard it a thousand times. But I also know that these hackneyed proverbs contain the very essence of the distilled wisdom of all ages. They have come out of the fiery experience of the human race and have been handed down through countless generations. If you were to read everything that has ever been written about worry by the great scholars of all time, you would never read anything more basic or more profound than such hackneyed proverbs as “Don’t cross your bridges until you come to them” and “Don’t cry over spilt milk.” If we only applied those two proverbs--instead of snorting at them--we wouldn’t need this book at all. In fact, if we applied most of the old proverbs, we would lead almost perfect lives. However, knowledge isn’t power until it is applied; and the purpose of this book is to remind you of what you already know and to kick you in the shins and inspire you to do something about applying it.Dale CarnegieThe Author of this QuoteAuthorDale Carnegiefamed author of How to Win Friends and Influence People