Authors
René Descartes
René Descartes (1596–1650) was a French philosopher, mathematician, and scientist who is considered a founder of modern Western philosophy. His work established methodological doubt as a tool for inquiry and produced foundational contributions to analytic geometry and rationalist epistemology; the quoted line reflects his emphasis on doubt as a starting point for wisdom.
Quotes: 4
Quotes by René Descartes

A Good Mind Matters Only in Use
Descartes draws an immediate distinction between possessing intelligence and exercising it properly. In other words, raw mental ability is only a starting point; what truly matters is judgment, discipline, and the abilit...
Created on: 4/22/2026

Tracing Wisdom to Its Roots in Doubt
René Descartes, the philosopher behind the famous dictum ‘Cogito, ergo sum,’ placed profound emphasis on doubt as a pathway to knowledge. His Meditations on First Philosophy (1641) introduces the ‘method of doubt,’ in wh...
Created on: 6/2/2025

Conquer Yourself Rather Than the World - René Descartes
This quote highlights the importance of mastering one’s own thoughts, emotions, and actions rather than seeking to dominate external circumstances or others. True strength lies in self-control.
Created on: 1/22/2025

There is Nothing More Equitably Distributed Than Reason: Everyone is Convinced That They Have Enough - René Descartes
Descartes highlights that every individual believes they possess sufficient reasoning abilities. This points to a universal human trait of confidence in one's own rationality.
Created on: 6/6/2024