The quote by Picasso captures how we feel about this book, as our thoughts changed considerably over the three years it took us to write it. In the many conversations we had with our patient acquisition editor, Bill Falloon, once again explaining why the book was going to miss yet another deadline, we reassured him, “You are going to get a much different, but better book than you initially signed up for.” Now that the book is nally nished, we are excited to see what happens as our creation is “released into the wild.” Like Picasso’s picture, our book will take on a life of its own as the concepts we present are assessed and scrutinized, adopted by some and refuted by others.

毕加索的这句话抓住了我们对这本书的感受，因为我们的思想在写这本书的三年里发生了很大的变化。我们要和另一本书的最后期限再谈一遍“为什么我们要和另一本书的最后期限不一样，但我们还是要和他在最后期限前签一个合同。”，当我们的创作被“放归荒野”时，我们很高兴看到会发生什么，就像毕加索的画作一样，当我们呈现的概念被评估和审视，被一些人采纳，被其他人驳斥时，我们的书将呈现出自己的生命。