René Descartes was a French philosopher born in 1596 who is known as "The Father of Modern Philosophy." He developed the philosophical position of rationalism which holds that reason is the chief source of knowledge rather than experience or empiricism. Descartes' most famous philosophical statement is "Cogito, ergo sum" which means "I think, therefore I am." He had a major influence on the Scientific Revolution and made important contributions to mathematics through his developments of analytical geometry and calculus.

1. René Descartes
”Cogito, ergo sum”, I think, therefore I am
”The Father of Modern Philosophy”
Rationalism as epistemological view
Born in France 31th of March 1596 in France
Died the 11th of February in 1650 in Sweden

2. Rationalism vs Empiricism
Brauch Spinoza, Gottfried Leibniz –David Hume, John Locke

3. Contributions
Major influence in the Scientific
Revolution
Mathematics: Analytical Geometry &
Calculus
Rationalism