Philosophy Quotes
Questions about meaning, existence, and truth from thinkers who spent their lives searching for answers.
43879 quotes
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"What we observe is not nature itself, but nature exposed to our method of questioning."Niels Bohr
"We are children of the universe exploring itself."Niels Bohr
"Reality is a collaborative creation between observer and observed."Niels Bohr
"The atoms or elementary particles themselves are not real; they form a world of potentialities or possibilities rather than one of things or facts."Max Planck
"I regard consciousness as fundamental. I regard matter as derivative from consciousness."Max Planck
"I regard matter as derivative from consciousness."Max Planck
"It is the constant tension between faith and reason that defines human progress."Max Planck
"The universe is not only queerer than we suppose, but queerer than we can suppose."Max Planck
"Every scientific theory is provisional and subject to revision."Max Planck
"Those who understand the quantum world find themselves humbled by its mystery."Max Planck
"The universe speaks to us through the language of natural laws."Max Planck
"Science can work on questions of fact, but not on issues of meaning and value."Stephen Jay Gould
"Progress is not inherent in the evolutionary process itself."Stephen Jay Gould
"Life on Earth has no predetermined destination or ultimate purpose."Stephen Jay Gould
"The history of life shows that nothing is inevitable or predetermined."Stephen Jay Gould
"Evolution has no ultimate goal, no intended destination, no final purpose."Stephen Jay Gould
"We are here by chance, not by design or destiny."Stephen Jay Gould
"The constant tension between creativity and skepticism is the unfailing hallmark of a rational mind."Enrico Fermi
"In the long run, the market is a weighing machine."Enrico Fermi
"What is the answer? And upon reflection, what is the question?"Enrico Fermi
"Philosophy is the art of being confused at a higher level of sophistication."Enrico Fermi
"Every physicist must confront the fundamental questions about the nature of reality."Ernest Rutherford
"The physical world operates according to principles we can understand through careful study."Rosalind Franklin
"The universe is rational; therefore, through reason, we can understand it."Rosalind Franklin
"One should as a rule respect public opinion in so far as is necessary to avoid starvation and to prevent oneself from being cast into prison."Werner Heisenberg
"What can we say about reality when we are by definition excluded from it?"Werner Heisenberg
"I am now convinced that theoretical physics is actual philosophy."Werner Heisenberg
"The observation that the universe is comprehensible is the beginning of philosophy."Werner Heisenberg
"The deepest principle of existence is cause and effect."Werner Heisenberg
"The principle of scientific parsimony demands that we employ the simplest consistent model."Werner Heisenberg