This book is a series of short, perceptive and witty essays about science and how it works. The author, a long-time theoretical physicist and science administrator, shares his hard won insights about science gained from years of working in the trenches. The approach is eclectic with examples and quotes from a wide variety of sources. However, a unified view of science is presented, namely that science is simply the straightforward application of model building and testing against observation. The technique is applicable to all walks of life, hence the title of the book.