Franz Brentano – Predecessor of phenomenology and founder of act psychology


Franz Brentano

Franz Clemens Honoratus Hermann Brentano
(16 January 1838, Marienberg am Rhein, Hesse-Nassau Germany – March 17, 1917, Zurich, Switzerland) (aged 79)
Nationality: Germany
Category: Scientists
Occupation: Philosophers, Psychologists
Specification: Phenomenological psychology, Act Psychology, Functional Psychology
Unique distinction: Founder of act psychology, or intentionalism, predecessor of phenomenology.
Gender: Male
Quotes: 1. We emphasized as a distinguishing characteristic the fact that the mental phenomena which we perceive, in spite of all their multiplicity, always appear to us as a unity, while physical phenomena, which we perceive at the same time, do not all appear in the same way as parts of one single phenomenon. 2…every mental phenomenon includes something as object within itself. 3. Man has an inborn tendency to trust his senses. He believes in the real existence of colours, tones, and whatever else a sensible presentation may contain. 4. An unconscious consciousness is no more a contradiction in terms than an unseen case of seeing. 5. We can say that the sound is the primary object of the act of hearing, and that the act of hearing itself is the secondary object. 6. Perception is an acceptance or recognition. And if what is accepted is a whole which has parts, then the parts are in a certain sense all co-recognised together with the whole. 7. The true method of philosophy is the only method of science.

Achievements and contributions:

Social and professional position: German psychologist, philosopher and priest.
The main contribution to (what is known): Many famous psychologists followed and used of his original ideas and concepts. He introduced the notion of intentionality to contemporary philosophy and psychology. His main ideas was inherited by Carl Stumpf’s Berlin School of experimental psychology, Anton Marty’s Prague School of linguistics, Alexius Meinong’s Graz School of experimental psychology, Kasimir Twardowski’s Lwów School of philosophy, and Husserlian phenomenology.
Contributions:  1. In his work he attempted to establish psychology as an independent science, as “the science of mental phenomena”.
2. Founder of Act Psychology, or intentionalism, which concerns itself with the mind’s acts or processes ( perception, judgment, loving, and hating) rather than with the contents and states of mind
3. Brentano put forward the idea of activity, objectivity and integrity of mind.
4. Intentionality. He is best known for having introduced the notion of intentionality to contemporary psychology and philosophy.
Every mental phenomenon, every psychological act has content, is directed at an object and intentionality or ‘directedness’ of the mental as is a fundamental aspect of thought and consciousness
5. The property of being intentional, was the key feature to distinguish psychical phenomena and physical phenomena.
6. Brentano distinguishes three kinds of mental phenomena: presentations (perception and imagining), judgments (acceptance or denial) and phenomena of love and hate (emotions, feelings, desires and acts of will).
7. Method. He stated that methods of psychology should be rigorous and exact as the methods of the natural sciences.
Introspection means for him to describe what one directly experiences in spontaneous inner perception, focused on the acts of mind, not its content.
8. He denies the idea of unconscious mental acts, however admited that we can have mental acts of various degrees of intensity.
9.Theory of perception. He maintained that we can be absolutely sure of our internal perception, but external sensory perception, can only yield hypotheses about the perceived world, but not truth.
10. He made important contributions to  metaphysics and ontology, ethics, philosophical theology and offers many original ideas in all the main branches of philosophy: time-consciousness, objectivity of value judgments in ethics and esthetics, judgement–predication distinction, existential judgments.
Major works: Psychology from an Empirical Standpoint (1874), The Origin of our Knowledge of Right and Wrong (1889), Inquiry into Sense Psychology (1907), Aristotle and his World View (1911), The Classification of Mental Phenomena (1911), Sensory and Noetic Consciousness (1928), were published posthumously by Oskar Kraus.

Career and personal life:

Origin: He was born at Marienberg am Rhein (de), near Boppard, Germane, a descendent of a strongly religious German-Italian family of intellectuals. He was the nephew of Clemens Brentano and Bettina von Arnim.
Education: He studied philosophy at the universities of Munich, Würzburg, Berlin and Münster.
Influenced by: Aristotle
Career highlights:  He wrote his dissertation in 1862 at Tübingen under the title “On the Several Senses of Being in Aristotle”. Subsequently he began to study theology and entered the seminary in Munich and then Würzburg. In 1866 he wrote and defended his habilitation thesis “The Psychology of Aristotle, in Particular His Doctrine of the Active Intellect”.
Brentano became a Catholic priest on August 6,1864 but left the Church in 1873 (As a strong opponent of papal infallibility).
He was a teacher at the University of Würzburg (1866-73), professor of philosophy (1874 -1880) and Privatdozent (1881-1895) at the University of Vienna.
He exerted a strong influence on his students:  Alexius Meinong, Christian von Ehrenfels, Rudolf Steiner, T.G. Masaryk, Sigmund Freud, Carl Stumpf, Kazimierz Twardowski, Edmund Husserl.
Personal life:  In order to marry, in 1880 he had to give up his professorship and Austrian citizenship and move to Leipzig. In 1880 he married his wife  Ida von Lieben (m.1880-1895).
After his retirement in 1895, in 1896 he moved to Florence in Italy, where he got married to Emilie Ruprecht in 1897.
When Italy entered war against Germany and Austria at  the First World War, he transferring to Zürich, where he died in 1917.

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