„Uncertainty is he root of all progress and all growth. As the old adage goes, the man who believes he knows everything learns nothing. We cannot learn anything without first not knowing something.“
Quelle: The Subtle Art of Not Giving a F*ck (2016), Chapter 6, “You’re Wrong About Everything (But So Am I)” (p. 135)
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„They who think they know all, learn nothing.“
— John Lancaster Spalding Catholic bishop 1840 - 1916
Quelle: Aphorisms and Reflections (1901), p. 257

— Charles Lyell British lawyer and geologist 1797 - 1875
Quelle: The Geological Evidences of the Antiquity of Man (1863), Ch.20, p. 406
Kontext: No one can believe in transmutation who is not profoundly convinced that all we know in paleontology is as nothing compared to what we have yet to learn, and they who regard the record as so fragmentary, and our acquaintance with the fragments which are extant as so rudimentary, are apt to be astounded at the confidence placed by the progressionists in data which must be defective in the extreme. But exactly in proportion as the completeness of the record and our knowledge of it are overrated, in that same degree are many progressionists unconscious of the goal towards which they are drifting. Their faith in the fullness of the annals leads them to regard all breaks in the series of organic existence, or in the sequence of the fossiliferous rocks, as proofs of original chasms and leaps in the course of nature, signs of the intermittent action of the creational force, or of catastrophes which devastated the habitable surface; and they are therefore fearless of discovering any continuity of plan (except that which must have existed in the Divine mind) which would imply a material connection between the outgoing organisms and the incoming ones.
— Daniel Keyes, buch Flowers for Algernon
Flowers for Algernon (1966)

„He who knows himself properly can very soon learn to know all other men. It is all reflection.“
— Georg Christoph Lichtenberg German scientist, satirist 1742 - 1799
G 8
Aphorisms (1765-1799), Notebook G (1779-1783)
— John Brunner, buch Morgenwelt
context (9) "Guncrit"
Stand on Zanzibar (1968)

— Blaise Pascal French mathematician, physicist, inventor, writer, and Christian philosopher 1623 - 1662

„Young people, who are beginners in everything, cannot yet know love: they have to learn it.“
— Rainer Maria Rilke, buch Briefe an einen jungen Dichter
Letter Seven (14 May 1904)
Letters to a Young Poet (1934)

„The more man learned, the more he realized he did not know.“
— Dan Brown, buch The Lost Symbol
Quelle: The Lost Symbol

„It is impossible for a man to learn what he thinks he already knows.“
— Epictetus philosopher from Ancient Greece 50 - 138

— Frank Herbert, buch Dune
Princess Irulan in The Humanity of Muad'Dib
Dune (1965)
Kontext: Muad'Dib learned rapidly because his first training was in how to learn. And the first lesson of all was the basic trust that he could learn. It's shocking to find how many people do not believe they can learn, and how many more believe learning to be difficult. Muad'Dib knew that every experience carries its lesson.
„They learn nothing, for they’re convinced they know everything that matters.“
— Sheri S. Tepper American fiction writer 1929 - 2016
Quelle: The Margarets (2007), Chapter 24, “I Am M’urgi/On B’Yurngrad” (p. 196)

— Philip K. Dick, buch Flow My Tears, the Policeman Said
Quelle: Flow My Tears, The Policeman Said (1974), Chapter 6 (p. 66)