: His ultimate conclusion—"I think, therefore I am"—established the thinking self as the only undeniable truth.

axes), he allowed geometric shapes to be expressed as algebraic equations.

: He argued that the mind (immaterial) and body (physical) are two distinct substances that interact, a concept known as Cartesian Dualism. 📐 Mathematical Innovation

: He famously discarded any belief that could be doubted, including the reliability of the senses.

: This invention is the foundation of modern calculus and virtually all modern engineering and computer graphics. 🎬 Pop Culture and Geography

The name "Cartesius" appears today in various niche and modern contexts: The Criterion Collection: Cartesius - 1More Film Blog