Philosophy Quotes
Questions about meaning, existence, and truth from thinkers who spent their lives searching for answers.
43879 quotes
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"The mind must be both flexible and firm—flexible in method, firm in principle."Christiaan Huygens
"To understand the universe, one must learn to think like the universe thinks."Christiaan Huygens
"Geometry will draw the soul toward truth and create the spirit of philosophy."Euclid
"The study of figures leads to the study of the soul."Euclid
"In studying the properties of shapes, we study the properties of existence."Euclid
"I am, I exist, is necessarily true whenever it is put forward by me or conceived in my mind."René Descartes
"One cannot conceive anything so strange and so implausible that it has not already been said by one philosopher or another."René Descartes
"The soul can never be thought of as originating from potentiality which is not possessed by a body."René Descartes
"Existence is perfection; non-existence is merely the absence of perfection."René Descartes
"To be is to be perceived, though not by Descartes."René Descartes
"The body is but the instrument of the mind's will."René Descartes
"The test of a true philosopher is not what he knows, but how he lives."René Descartes
"I am more and more convinced that the necessity of our geometry cannot be proved, at least not by human reason and for human reason."Carl Friedrich Gauss
"To understand the thoughts of God, one must think mathematically."Carl Friedrich Gauss
"To deny intuition entirely is to amputate the mathematician's right hand."Carl Friedrich Gauss
"Philosophy and mathematics are two languages describing the same underlying reality."Carl Friedrich Gauss
"The circle is the most perfect of all forms, for it has no beginning and no end."Archimedes
"A curved surface reveals more truth than a flat assumption."Archimedes
"The greater the precision, the greater the beauty; the greater the beauty, the greater the truth."Archimedes
"In the workshop of creation, mathematics is both the blueprint and the builder."Archimedes
"The human mind, though finite, can grasp the infinite through reason."Leonhard Euler
"To make progress, we must question everything, even our deepest assumptions."Leonhard Euler
"The mind, though limited, can through reason approach the infinite."Leonhard Euler
"The greatest perfection of man is to act according to reason."Gottfried Leibniz
"Each monad mirrors the entire universe from its own perspective."Gottfried Leibniz
"The smallest act performed with integrity mirrors the largest cosmic order."Gottfried Leibniz
"In the vastness of space, humanity finds both humility and wonder."Christiaan Huygens
"To measure the universe, one must first measure oneself."Christiaan Huygens
"The contemplation of infinity expands the limitations of finite minds."Christiaan Huygens
"Every portion of space is filled with souls."Johannes Kepler