The aim of this book is to explain, carefully but not technically, the differences between advanced, research-level mathematics and the sort of mathematics we learn at school. The most fundamental differences are philosophical, and listeners of this book will emerge with a clearer understanding of paradoxical-sounding concepts such as infinity, curved space, and imaginary numbers. The first few chapters are about general aspects of mathematical thought.

スペインの哲学者オルテガ・イ・ガセット（一八八三─一九五五）による痛烈な時代批判の書．自らの使命を顧みず，みんなと同じであることに満足しきった「大衆」は，人間の生や世界をいかに変質させたのか．

Through a study of the way of the samurai, Nitobe identifies the seven virtues most widely recognized by the Japanese: rectitude, courage, benevolence, politeness, veracity, honor, and loyalty. In sharing these moral guidelines, handed down over generations, Nitobe gives the world unique insight into a previously unexplored code of honor.

George S. Clason takes financial understanding back to its roots, where property and prosperity were first explored by the Babylonians. Utilizing parables and metaphors set in ancient Babylon, Clason expounds on how to get out of debt, increase savings, build passive income, and more.

In this intriguing business novel, which illustrates state-of-the-art economic theory, Alex Rogo is a UniCo plant manager whose factory and marriage are failing. To revitalize the plant, he follows piecemeal advice from an elusive former college professor who teaches, for example, that reduction in the efficiency of some plant operations may make the entire operation more productive. Alex's attempts to find the path to profitability and to engage his employees in the struggle involve the listener; and thankfully the authors' economic models.