Cartesianism

Cartesianism is a philosophical system founded by René Descartes, emphasizing reason as the primary source of knowledge. It is a branch of Rationalism, which asserts that reality can be understood through logical deduction and intellectual insight rather than solely through sensory experience. Descartes is famously known for the phrase "I think, therefore I am," highlighting the importance of doubt and critical thinking. His work laid the groundwork for modern philosophy and science by advocating for a methodical approach to question accepted beliefs and seek evidence through rational thought.