PREFACE vHIS book gives a new and practical definition of WILL-POWER, and applies . itto the building up of a man’s character and success, and to the creation of a great and profitable business. h In the past, the Will has been written about by Professors of metaphysics. The whole subject has been befogged by scholasticism. Almost all the books on the Will are unintelligible to practical men of affairs. Schopenhauer wrote two books on the Will —The World as Will and Idea and The Will in Nature. He wrote these books a hundred years ago. Ever since then, the Will has been a favourite subject of philosophers. Practical men have paid very little attention to it. But can we afford to ignore it ? Is it not true that hundreds of men succeed because they discover how to develop their Will-Power, and that tens of thousands of men fail because of a lack of Will-Power at a critical moment ? In these days of especial difficulties—of 9