Final answer:
True, Montesquieu's ideas on Freedom of Thought and Expression contradicted the principles of absolute monarchies by advocating for a separation of powers to prevent any one branch of government from becoming too powerful.
Step-by-step explanation:
The concept of Freedom of Thought and Expression as advocated by Montesquieu does indeed go against the principles of absolute monarchies, which predominate at the time, in favor of checks to power on all levels. This is True. Montesquieu's philosophy underlies the foundational principles of constitutional governance, advocating for the separation of powers among the legislative, executive, and judicial branches.
This structural divide is intended to create a system of checks and balances, ensuring that no single entity could consolidate power, a stark contrast to the unchecked authority often characteristic of absolute monarchies. His ideas significantly influenced the founders of the American government and the drafting of the United States Constitution.