阿伏伽德罗(Ameldeo Avogadro}1776～1856，意大利自然科学家。1776年8月9日生于都灵的一个贵族家庭，早年致力于法学工作。1796年得法学博士后曾任地方官吏。他从1800年起开始自学阿伏伽德罗常数数学和物理学。1803年发表了第一篇科学论文。1809年任末尔利学院自然哲学教授。1820年都灵大学设立了意大利的第一个物理讲座，他被任命为此讲座的教授，1822年由于政治上的原因，这个讲座被撤销，直到1832年才恢复，1833年阿伏伽德罗重新担任此讲座的教授，直到1850年退休。1856年7月9日在阿伏伽德罗在都灵逝世。终年80岁。阿伏伽德罗一生从不追求名誉地位，只是默默地埋头于科学研究工作中，并从中获得了极大的乐趣。阿伏伽德罗早年学习法律，又做过地方官吏，后来受兴趣指引，开始学习数学和物理，并致力于原子论的研究，他提出的分子假说，促使道尔顿原子论发展成为原子——分子学说。使人们对物质结构的认识推进了一大步。但遗憾的是，阿伏伽德罗的卓越见解长期得不到化学界的承认，反而遭到了不少科学家的反对，被冷落了将近半个世纪。由于不采纳分子假说而引起的混乱在当时的化学领域中非常严重，各人都自行其事，碳的原子量有定为6的，也有定为12的，水的化学式有写成HO的，也有写成H₂O的，醋酸的化学式竟有19种之多。当时的杂志在发表化学论文时，也往往需要大量的注释才能让人读懂。一直到了近50年之后，德国青年化学家迈耶尔认真研究了阿伏伽德罗的理论，于1864年出版了《近代化学理论》一书。许多科学家从这本书里，懂得并接受了阿伏伽德罗的理论，才结束了这种混乱状况。

Calculus is the code to open the universe, and mechanics is the key to open the door to the universe, so the system model theory is to understand the pattern of the universe. The reason why the world is so wonderful, beautiful and long-lasting is precisely because of his system model construction. The universe model based on the system model must be the most natural, beautiful, and intelligent model in the universe. God created the world based on a system. Our world is a system. Everything in the world is a system. Without a system, there would be no world. The construction of a system model is how God created the world.
In fact, whether in the East or the West, there are a lot of statements and records about system construction in ancient philosophy, medicine and other fields. For example, the western philosopher Aristotle once said that the sum of individuals is greater than the sum of individuals; for example, the theories of the human body microcosm in the beauty of Buddhism, such as the theory of Tiandao in the Chinese Tao Te Ching, etc., are all about system construction. . In the modern field, there are also many researchers doing systematic research. For example, Bertrand of Sweden and Qian Xuesen, the father of nuclear physics in China, are more representative. In particular, the introduction of system theory, information theory, and cybernetics have allowed people to focus only on the system itself, and made the study of system model construction a completely new topic. So my research theory may not be paid attention to, there is great possibility and rationality. But this is exactly the important mission of the article written by me and deeply requires the society and human beings to pay attention to the theory of system model construction.