Philosophy Quotes

Questions about meaning, existence, and truth from thinkers who spent their lives searching for answers.

43879 quotes

D
"I am the cause of my own thoughts."
Descartes, René
D
"The mind is a substance independent of matter."
Descartes, René
D
"The soul is one hundred percent of a human being."
Descartes, René
D
"Each substance thinks or is extended."
Descartes, René
D
"The human soul, though it exists in intimate association with the body, is not the less independent in its essence."
Descartes, René
D
"By applying reason to one's own existence, one can transcend the limitations of the physical world."
Descartes, René
D
"Materialism is the belief that nothing exists but matter and motion."
Descartes, René
L
"Metaphysics is the science of possibilities."
Leibniz, Gottfried
L
"Each substance expresses the whole universe in its own way."
Leibniz, Gottfried
L
"Nothing happens without a sufficient reason."
Leibniz, Gottfried
L
"The greatest minds are capable of the greatest vices and the greatest virtues."
Leibniz, Gottfried
L
"Consciousness is the ultimate mystery."
Leibniz, Gottfried
L
"Every mind is a universe unto itself."
Leibniz, Gottfried
L
"The best of all possible worlds contains both good and evil."
Leibniz, Gottfried
L
"The fundamental principle of all things is substance."
Leibniz, Gottfried
L
"We are all links in an infinite chain of cause and effect."
Leibniz, Gottfried
L
"The body is the expression of the soul."
Leibniz, Gottfried
L
"Language is the mirror of the mind."
Leibniz, Gottfried
L
"The purpose of philosophy is to understand the nature of reality."
Leibniz, Gottfried
L
"Life is a series of perspectives, each valid from its own point of view."
Leibniz, Gottfried
L
"The world is made of infinite substance, each reflecting all others."
Leibniz, Gottfried
L
"Everything that exists has a reason for its existence."
Leibniz, Gottfried
L
"The infinite and the finite are two aspects of the same reality."
Leibniz, Gottfried
L
"Such is the nature of man that no one attribute can be said to be evidently predominant or supreme."
Locke, John
L
"There cannot any one moral rule be proposed whereof a man may not justly demand a reason."
Locke, John
L
"The art of thinking is the most useful art."
Locke, John
L
"The prejudices of men are formed from the example of their parents."
Locke, John
L
"To require agreement on all points is to require uniformity where diversity should reign."
Locke, John
L
"In the state of nature, there is no injustice, for injustice is the absence of law."
Locke, John
A
"The wise person does not give the right answer; he poses the right question."
Al-Ghazali