He made important contributions to the development of modern mathematics and is considered the father of analytic geometry for formulating the geometric coordinate system.

Descartes is a representative of dualism. He left the famous saying "I think, therefore I am" and put forward the idea of ??"universal doubt". He is one of the founders of modern European philosophy. Hegel called him " The father of modern philosophy." His philosophical thoughts deeply influenced subsequent generations of Europeans, pioneering the so-called "Continental Rationalism" philosophy.

He also clearly proposed the law of conservation of momentum for the first time: the total amount of matter and motion always remains the same. It lays the foundation for the law of conservation of energy.

Descartes applied his mechanistic viewpoint to celestial bodies, developed the theory of cosmology, and formed his theory on the occurrence and structure of the universe. He believed that things were easier to understand from a developmental point of view rather than just from an existing form. He founded the theory of whirlpools. He believed that there were huge whirlpools around the sun, stars.