Abraham Maslow book Motivation and Personality
Source: Motivation and Personality (1954), p. 123.
Géza Révész (1950)., Psychology and art of the blind. Oxford, England: Longmans. Abstract.
Abraham Maslow book Motivation and Personality
Source: Motivation and Personality (1954), p. 123.
Albert Einstein book The Evolution of Physics
The Evolution of Physics (1938) (co-written with Leopold Infeld)
1930s
“Experience without theory is blind, but theory without experience is mere intellectual play.”
Immanuel Kant (1724–1804) German philosopher
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
Alfred Adler (1870–1937) Medical Doctor, Psychologist, Psychiatrist, Psychotherapist, Personality Theorist
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.
:”
Imre Lakatos (1921–1974) Hungarian mathematician, philosopher
Morris Kline (1908–1992) American mathematician
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.
Leif Edward Ottesen Kennair (1970)
"Evolutionary Psychology: An Emerging Integrative Perspective Within The Science And Practice Of Psychology" (2002)