Principa Practica is a provocative work in which author Arnold Johanson maintains that philosophers since Socrates have been asking the wrong questions, like "What is good?" and "What is right?" The reason for this, according to the author, is that moral philosophers have based their work on a logical framework more suitable to science than to ethics and politics. Striking out in a new direction, the author bases his work on the concept of requirement which he finds not only has a rich logical structure but, if properly formulated, can be used to guide humanity in its struggle to find meaning in life, on one hand, and to find peace, happiness, and order, on the other. The fact that the work has an emphasis on logic may suggest that only those with a technical bent can read this work, but this is not so: much of this work—over two-thirds—is designed to be read by those without a technical background in mathematics and logic.