Philosophy Quotes

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

43879 quotes

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"Determinism and human agency appear contradictory, yet both seem true."
Pierre-Simon Laplace
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"A theory that explains everything explains nothing."
Pierre-Simon Laplace
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"We must admit with humility that, while number is purely a product of our minds, space has a reality outside our minds."
Carl Friedrich Gauss
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"The principles of sufficient reason ought to be one of the greatest and most fruitful of the principles of human knowledge."
Gottfried Leibniz
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"Nothing happens without a reason, nothing at all."
Gottfried Leibniz
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"Each substance expresses the whole universe in its own way."
Gottfried Leibniz
G
"The human mind is like a monad, a reflection of the entire universe."
Gottfried Leibniz
G
"The soul is the entelechy of the living body."
Gottfried Leibniz
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"Every action has consequences that ripple through eternity."
Gottfried Leibniz
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"The universe is a mirror of divine wisdom and power."
Gottfried Leibniz
A
"A sand grain contains infinity; infinity contains but a sand grain."
Archimedes
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"To measure the circle is to measure the soul."
Archimedes
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"To doubt is to think; to think is to doubt."
Archimedes
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"The sand may pile high, but it shall return to the sea, as all things return to truth."
Archimedes
A
"To understand the circle is to understand infinity itself."
Archimedes
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"The practice of astronomy teaches that the universe is far grander than our ambitions."
Tycho Brahe
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"The observer must become the observed in order to truly understand."
Tycho Brahe
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"The stars have shown me that all human concerns are temporary."
Tycho Brahe
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"The cosmos is a text that must be read slowly and with great care."
Tycho Brahe
"The laws of mathematics are the canvas God laid down on which he painted the world."
Euclid
"The world is drawn out by three things: by space, time, and mathematics."
Euclid
"The eternal will always manifest through the temporal."
Euclid
"The infinite contains all finite things within its eternal embrace."
Euclid
"Mathematics is the language in which God wrote the universe."
Euclid
"In the study of forms, we discover the study of ourselves."
Euclid
"The parallel lines that never meet teach us about the limits of our knowledge."
Euclid
"The axioms are not discovered; they are chosen; yet their consequences are discovered."
Euclid
"The student who questions the axioms questions the very foundation of understanding."
Euclid
"Where definitions end, philosophy begins."
Euclid
"The line that has no thickness contains infinite precision."
Euclid