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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"Words acquire their meaning through their role in human practices."
Geach, Peter
G
"Every statement about the world involves a presupposition about logic."
Geach, Peter
G
"Causation is not a relation we observe; it is a structure of our understanding."
Geach, Peter
G
"Reference is not a simple relation between words and things."
Geach, Peter
G
"A good definition reveals the nature of a thing, not merely its name."
Geach, Peter
G
"Meaning cannot be determined by mental states alone."
Geach, Peter
G
"Modal logic reveals depths in ordinary discourse that few notice."
Geach, Peter
G
"Names have histories; their meanings are not fixed in eternity."
Geach, Peter
G
"The logical form of a statement may be hidden by its grammatical form."
Geach, Peter
G
"Language both reveals and conceals the nature of reality."
Geach, Peter
G
"The verb 'exist' does not function like ordinary predicates."
Geach, Peter
G
"Words change their meanings over time but retain core functions."
Geach, Peter
G
"Univocal meaning is rare; equivocation is the norm in discourse."
Geach, Peter
G
"Intentionality is the mark of mental phenomena and thought."
Geach, Peter
G
"Language is public; private meanings are logical impossibilities."
Geach, Peter
G
"The predicable relations between things structure our understanding."
Geach, Peter
G
"Ordinary language often embeds philosophical wisdom."
Geach, Peter
G
"Words carry the weight of tradition; we inherit meaning as we inherit language."
Geach, Peter
G
"Meaning is determined by use within a linguistic community."
Geach, Peter
G
"Understanding others requires understanding their conceptual frameworks."
Geach, Peter
G
"Words are not transparent; they require careful interpretation."
Geach, Peter
L
"To understand causation, we must first understand counterfactuals."
Lewis, David
L
"Propositions are abstract objects, but sentences are concrete things."
Lewis, David
L
"Properties are patterns in the world, not additions to it."
Lewis, David
L
"We must be careful to distinguish properties from relations."
Lewis, David
L
"Abstract objects exist, but they are causally inert."
Lewis, David
L
"Classes are useful fictions, sometimes nothing more."
Lewis, David
L
"We carve the world at its joints, not arbitrarily."
Lewis, David
L
"Properties form a hierarchy of fundamentality."
Lewis, David
L
"Convention governs which objects we recognize as natural kinds."
Lewis, David