Knowledge Quotes

From ancient scholars to modern scientists, these quotes explore what it means to learn and to know.

31147 quotes

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"There are three grades of clearness in our apprehension of a proposition."
Peirce, Charles Sanders
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"The object of reasoning is to find out, from the consideration of what we already know, something else which we do not know."
Peirce, Charles Sanders
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"Doubt is the key to all knowledge."
Peirce, Charles Sanders
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"The purpose of a sign is to bring the mind into a relation with something beyond the sign itself."
Peirce, Charles Sanders
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"All the knowledge we possess is but the fruit of past experience."
Peirce, Charles Sanders
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"The true method of knowledge is to make a beginning in a small way."
Peirce, Charles Sanders
P
"Every body of knowledge develops in complexity and specialization."
Peirce, Charles Sanders
P
"Knowledge is a species of representation."
Peirce, Charles Sanders
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"Every act of consciousness is intentional—it is always directed toward an object."
Husserl, Edmund
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"Consciousness is always consciousness of something; it has a directedness that defines it."
Husserl, Edmund
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"The transcendental ego stands at the center of all intentional acts."
Husserl, Edmund
H
"The objects of consciousness are never given all at once, but only in profiles and aspects."
Husserl, Edmund
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"To understand the present, we must understand how consciousness constitutes it."
Husserl, Edmund
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"Intentionality is the fundamental feature that distinguishes consciousness from mere physical processes."
Husserl, Edmund
H
"Every act of understanding involves a leap beyond what is immediately given."
Husserl, Edmund
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"The mind does not mirror reality; it constitutes reality through its synthetic acts."
Husserl, Edmund
H
"Attention is not a passive reception but an active constitution of the object's presence."
Husserl, Edmund
H
"The reduction is not a negation of the world but an opening to its true significance."
Husserl, Edmund
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"The appearance of an object always surpasses what is immediately presented."
Husserl, Edmund
H
"The transcendental method reveals that all knowledge is ultimately self-knowledge."
Husserl, Edmund
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"Becoming conscious is a process of constant self-revision and self-understanding."
Husserl, Edmund
H
"The most thought-provoking thing in our thought-provoking time is that we are still not thinking."
Heidegger, Martin
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"We ourselves are the entities to be analyzed, yet we are also those who carry out the analysis."
Heidegger, Martin
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"Language is the primordial dimension in which understanding first occurs."
Heidegger, Martin
H
"Understanding is not a possession we have but a mode of our being."
Heidegger, Martin
H
"We speak our everyday language without reflecting on what language itself does."
Heidegger, Martin
H
"We are always interpreting the world; pure observation is a philosophical fiction."
Heidegger, Martin
H
"We are always already interpreting our world through culturally inherited meanings."
Heidegger, Martin
S
"The wise man doesn't give the right answer, he poses the right question."
Spencer, Herbert
S
"The only true knowledge is knowing that you know nothing."
Spencer, Herbert