Source: Motivation and Personality (1954), p. 123.
“A theory of haptics is expounded which the author feels will establish "a foundation for the Haptics of form and the psychology of the blind." He differentiates between "Haptics of an essentially optical character" and "pure or autonomous Haptics" such as is experienced by those blind from early childhood. The weaknesses of certain psychological theories such as Gestalt, are discussed in terms of Révész's haptic theory. Part II of the book analyzes the aesthetics of haptic form and the art of the blind. The work of blind sculptors is presented and is analyzed.”
Géza Révész (1950)., Psychology and art of the blind. Oxford, England: Longmans. Abstract.
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Géza Révész 3
Hungarian psychologist and musicologist 1878–1955Related quotes

“Experience without theory is blind, but theory without experience is mere intellectual play.”
This is declared to be "an old Kantian maxim" in General Systems Vol. 7-8 (1962), p. 11, by the Society for the Advancement of General Systems Theory, but may simply be a paraphrase or summation of Kantian ideas.
Kant's treatment of the transcendental logic in the First Critique contains a portion, of which this quote may be an ambiguously worded paraphrase. Kant, claiming that both reason and the senses are essential to the formation of our understanding of the world, writes: "Without sensibility no object would be given to us, and without understanding none would be thought. Thoughts without content are empty, intuitions without concepts are blind (A51/B75)".
Disputed

From a new translation of "Progress in Individual Psychology" ("Fortschritte der Individualpsychologie", 1923), a journal article by Alfred Adler, in the AAISF/ATP Archives.

“Blind commitment to a theory is not an intellectual virtue: it is an intellectual crime.
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Source: Mathematical Thought from Ancient to Modern Times (1972), p. 346
Context: Fermat applied his method of tangents to many difficult problems. The method has the form of the now-standard method of differential calculus, though it begs entirely the difficult theory of limits.

"Evolutionary Psychology: An Emerging Integrative Perspective Within The Science And Practice Of Psychology" (2002)

Letter To Carl Alfred Meier (1950)