Latin was studied and used by scholars in many Western countries before. If we, the people, give up all humanities studies and practices, individuals will become more or less machines. Humanities study and practice do not destroy our ecological system and the practices, if resumed or widely continued, are themselves the very sustainability of human tradition and identity. What is the very human condition for us to preserve so that human beings’ existence is sustained? What features are the most important for a human to be labelled as rich, successful or highly respectable? Regarding consumption and possession, is it material (for example, a man or a family or a country is the owner of isolated precious metals such as a large pile of gold bars, or the owner of many houses and cars) or alternatively information (for example someone has a lot of knowledge, or has watched many movies where the amount can be measured by number of bits, or know-how), or both? There are some other human traits which might find difficult to be quantitatively assessed by weights (for material) or bits (information); these characteristics of human beings as an intelligent animal are probably spirituality or morality, etc