Gottfried Wilhelm Leibniz
modernRationalism1646 – 1716
Gottfried Wilhelm Leibniz (1646–1716) was a German polymath and rationalist philosopher whose metaphysical system centered on the theory of monads, pre-established harmony, and the principle of sufficient reason. He made foundational contributions to logic, mathematics (co-inventing calculus independently of Newton), and natural theology. His theodicy—arguing that this world is the best of all possible worlds—remained a touchstone of philosophical theology for centuries.
Notable Achievements
1
Developed the monadology, a metaphysical system grounding reality in simple, non-extended substances called monads
2
Formulated the principle of sufficient reason and the principle of identity of indiscernibles
3
Authored the Theodicy, systematically defending divine goodness in light of evil
4
Co-invented infinitesimal calculus independently of Newton, with notation still in use today
5
Laid groundwork for modern symbolic logic and the idea of a universal characteristic (characteristica universalis)