Knowledge Quotes

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

31147 quotes

H
"If I were to awaken after having slept for a thousand years, my first question would be: has the Riemann hypothesis been proved?"
Hilbert, David
H
"The problem of knowledge is not one for the world of sense but one for the mind."
Hilbert, David
H
"Science is organized knowledge that has been verified by experience."
Hilbert, David
H
"No one shall ever expel us from the paradise of abstract mathematics that Cantor created."
Hilbert, David
H
"Logic is the foundation upon which all human knowledge rests."
Hilbert, David
H
"The pursuit of perfect knowledge is itself a form of infinite progress."
Hilbert, David
H
"Mathematics is the bridge between the visible and invisible worlds."
Hilbert, David
F
"The distinction between concept and object is fundamental to all thought."
Frege, Gottlob
F
"The sense of a word determines what objects it refers to."
Frege, Gottlob
F
"Understanding requires grasping both sense and reference."
Frege, Gottlob
F
"Logic reveals the structure of all coherent thought."
Frege, Gottlob
F
"Clarity in expression requires clarity in thought."
Frege, Gottlob
F
"Abstract objects are as real as concrete physical ones."
Frege, Gottlob
F
"The compositionality of language reflects the structure of thought."
Frege, Gottlob
F
"Logical form is universal across all languages."
Frege, Gottlob
F
"Proper analysis reveals what appears confused in natural language."
Frege, Gottlob
F
"An object's properties determine which concepts it falls under."
Frege, Gottlob
F
"The meaning of a word is public and objective, never merely private."
Frege, Gottlob
F
"A sentence expresses a thought and asserts a truth-value."
Frege, Gottlob
F
"We understand a concept when we can use it correctly in all contexts."
Frege, Gottlob
F
"The logical structure of language reflects objective reality."
Frege, Gottlob
F
"Sameness of reference requires sameness of meaning."
Frege, Gottlob
F
"Language is the vehicle for the objectivity of thought."
Frege, Gottlob
F
"Reality consists of facts, not things alone."
Frege, Gottlob
F
"A concept must have determinate boundaries for clear thinking."
Frege, Gottlob
F
"Logical analysis reveals what ordinary language conceals."
Frege, Gottlob
W
"The capacity for mathematics is one of the most distinctive features of the human intellect."
Weyl, Hermann
W
"Knowledge becomes genuine and alive in our hands only when it passes through the process of our active thinking."
Weyl, Hermann
C
"In mathematics you don't understand things. You just get used to them."
Church, Alonzo
C
"An algorithm must be seen to be believed."
Church, Alonzo