Philosophy Quotes

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

43879 quotes

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"The universe is not only queerer than we suppose, but queerer than we can suppose."
Carl Sagan
C
"The human capacity for self-deception is remarkable and dangerous."
Carl Sagan
C
"The Earth is a small stage in a vast cosmic arena."
Carl Sagan
C
"Humans are capable of both great compassion and great cruelty."
Carl Sagan
C
"Dogmatism and critical thinking are incompatible."
Carl Sagan
C
"Emotion and reason both play essential roles in human thought."
Carl Sagan
C
"Diversity of thought strengthens communities and societies."
Carl Sagan
C
"The cosmos invites us to think in terms of billions and billions."
Carl Sagan
C
"Our responsibilities extend beyond ourselves to all life."
Carl Sagan
C
"The most profound questions often have no simple answers."
Carl Sagan
C
"We are the universe made conscious of itself."
Carl Sagan
J
"The knowledge that all existence is sacred, is the basis of all morality."
Jane Goodall
J
"Each individual matters and contributes to the greater whole."
Jane Goodall
J
"We are all connected to each other and to nature."
Jane Goodall
N
"I go away, but the questions remain."
Niels Bohr
N
"The paradox is only a conflict between reality and your feeling of what reality ought to be."
Niels Bohr
N
"Everything we call real is made of things that cannot be regarded as real."
Niels Bohr
N
"The true paradox is this: the atoms or elementary particles themselves are not real; they form a world of potentialities."
Niels Bohr
N
"The separation of the world into subject and object, inner world and outer world, is no longer adequate."
Niels Bohr
N
"We are suspended in language in such a way that we cannot say what is up and what is down."
Niels Bohr
N
"The epistemological problem of what one means by physical reality plays a central role in all modern discussions on the foundations of physics."
Niels Bohr
N
"We must abandon the ideal of an objective description of nature separated from man."
Niels Bohr
N
"We are not merely passive observers of the world; our observations shape reality itself."
Niels Bohr
N
"The atoms or elementary particles are not real; they form a world of potentialities rather than of things or facts."
Niels Bohr
"The effort to understand the universe is one of the very few things that lifts human life a little above the level of farce."
Richard Feynman
"I have abandoned the search for truth and am now looking for a good theory."
Richard Feynman
"The universe rewards those who ask questions more carefully than those who accept answers blindly."
Richard Feynman
C
"We make up meanings because we are creatures that crave understanding."
Carl Sagan
C
"How is it that hardly any major religion has looked at science and concluded, 'This is better than we thought'?"
Carl Sagan
C
"We are products of the universe knowing itself."
Carl Sagan