The TRIZ universality principle states that any given system can be decomposed into a small number of basic elements, or "building blocks." These building blocks are universal in nature and can be found in systems across a wide range of disciplines. By understanding the universality of these building blocks, we can develop more comprehensive and integrated solutions to complex problems. The Swiss Army knife is a classic example of the TRIZ universality principle in action. Its multiple functions and features are all derived from a small number of basic elements, such as the blade, handle, and screws. Similarly, the TRIZ method itself is based on a small set of universal principles that can be applied to any system. Thanks to its universality, the TRIZ method is an powerful tool for solving complex problems.