Final answer:
It's true that the assumptions of classical theory have limitations; these theories have provided insights into economics and governance but do not fully align with the complexities of the modern world. Scientific theories do not automatically become laws over time; laws are broadly applicable until disproved.
Step-by-step explanation:
The question posed whether the assumptions of classical theory have limitations is indeed true. While classical theory has provided valuable contributions and insights into various aspects of society, like economic thinking and governmental principles, it does indeed have limitations. Classical economic theory, for instance, assumes that markets are always in equilibrium and that all agents have perfect information, which is not always the case in real-world scenarios. Moreover, in the field of political thought, classical theory often does not account for the nuances and complexities of modern governance. Furthermore, addressing the reference statements, when a theory has been known for a long time, it does not necessarily become a law. This is a false statement, as laws in the scientific context are descriptions of observed phenomena and theories are the explanations of those phenomena. There is a distinction between models, theories, and laws in terms of their validity. Models and theories have limited validity as they are subject to revision upon new evidence, whereas scientific laws are considered universally valid until proven otherwise. Additionally, while the market revolution in the United States indeed brought significant social and economic changes, the necessary and proper clause in the U.S. Constitution has not generally been used to limit the power of the national government; it has often been interpreted to expand it.