LIDO is a Metamodeling language for developing IoT solutions. It is a set of concepts of high-level abstraction. LIDO make it possible that people with different technical backgrounds and IoT culture can come together around the development of IoT solutions. LIDO allow people of different disciplines, having different viewpoints to come together to discuss and reflect on the modeling and implementation of an IoT solution. This article presents the philosophy underlying LIDO that makes it a universal language allowing sustainable development.