Originally conceived as a reflection on humanity's relationship with energy and progress, this work continues to inspire readers more than a century later. It offers a unique opportunity to experience Tesla's thoughts directly and gain insight into the mindset of one of history's greatest inventors. This edition is an excellent addition to any Nikola Tesla collection and serves as a meaningful souvenir for science enthusiasts, students, engineers, researchers, and admirers of technological innovation. Important note: This book is written in the Serbian language.