Francisco Sanches

For other people of the same name, see Francisco Sanchez (disambiguation).

Francisco Sanches
File:Francisco Sanches2.jpg Francisco Sanches
Born	c. 1550 Tui
Died	November 16, 1623 Toulouse
Era	Renaissance philosophy
Region	Western Philosophy
School	Renaissance skepticism

Francisco Sanches (c. 1550 – November 16, 1623) was a Portuguese skeptic philosopher and physician of Sephardi Jewish origin.

Early life and academic career

Although he was born in Tui, in Galicia, Spain, Sanches was baptised in Braga, Portugal, on July 25, 1551, and spent his childhood there. His parents were António Sanches, also a physician, and Filipa de Sousa. Being of Jewish origin, even if converted, he was legally considered a New Christian.

He studied in Braga until he was 12 years old, when he moved to Bordeaux with his parents, escaping the surveillance of the Portuguese Inquisition. There he resumed his studies at the College de Guyenne. He went on to study medicine in Rome in 1569, and, back in France, in Montpellier and Toulouse. He ended up, after 1575, as a professor of philosophy and medicine at the University of Toulouse.

File:Maison d'Augier Ferrier.jpg

His house in Toulouse

Main work and thought

In his Quod nihil scitur (That Nothing Is Known), written in 1576 and published in 1581, he used the classical skeptical arguments to show that science, in the Aristotelian sense of giving necessary reasons or causes for the behavior of nature, cannot be attained: the search for causes quickly descends into an infinite regress and so cannot give certitude. He also attacked demonstrations in the forms of syllogisms, arguing that the particular (the conclusion) is needed to have a conception of the general (the premises) and thus that syllogisms were circular and did not add to knowledge.

File:Francisco Sanches.jpg

Statue of Francisco Sanches, by Salvador Barata Feyo in Braga.

Perfect knowledge, if attainable, is the intuitive apprehension of each individual thing. But, he then argued, even his own notion of science — perfect knowledge of an individual thing — is beyond human capabilities because of the nature of objects and the nature of man. The interrelation of objects, their unlimited number, and their ever-changing character prevent their being known. The limitations and variability of man's senses restrict him to knowledge of appearances, never of real substances. In forming these last argument he drew on his experience of Medicine to show how unreliable our sense experience is.

Sanches' first conclusion was the usual fideistic one of the time, that truth can be gained by faith. His second conclusion was to play an important role in later thought: just because nothing can be known in an ultimate sense, we should not abandon all attempts at knowledge but should try to gain what knowledge we can, namely, limited, imperfect knowledge of some of those things which we become acquainted with through observation, experience, and judgment. The realization that nihil scitur ("nothing is known") thus can yield some constructive results. This early formulation of "constructive" or "mitigated" skepticism was to be developed into an important explication of the new science by Marin Mersenne, Pierre Gassendi, and the leaders of the Royal Society.

File:Francisco Sanches Diploma.jpg

Reproduction of Francisco Sanches' signature as found in his diploma from the University of Montpellier. It reads, in Latin, Franciscus Sanches Bracharensis, or Francisco Sanches of Braga. From the statue by Salvador Barata Feyo.

Works

• Carmen de Cometa, 1577.
• Quod nihil scitur, 1581.
• De divinatione per somnum, ad Aristotelem, 1585.
• Opera Medica, 1636, which includes:
  • De Longitudine et Brevitate vitae, liber
  • In lib. Aristotelis Physiognomicon, Commentarius
  • De Divinatione per Somnum
  • Quod Nihil Scitur, liber
• Tractatus Philosophici, 1649.

References

Editions

• Latin-German. Introduction and Notes by Kaspar Howald. Translated by Damian Caluori and Kaspar Howald. Latin Text by Sergei Mariev. PhB 586. 2007. CLXIV 322 pages.

• Critical edition of QVOD NIHIL SCITUR.

• .

Studies

• BRITO, Alberto Moreira da Rocha, Francisco Sanches, médico, professor e pedagogo. Braga: Bracara Augusta, 1952.
• CALUORI, Damian, 'The Scepticism of Francisco Sanchez'. Archiv für Geschichte der Philosophie 89 (2007) 30-46.
• CARVALHO, Joaquim de, Introdução a Francisco Sanches, in Francisco Sanchez, Opera Philosophica, Coimbra, 1955.
• Fond. Calouste Gulbenkian, Sanches au tournant de la pensée de la renaissance, Sep. Colloque-L'humanisme portugais et l'Europe, Paris: Fond. Calouste Gulbenkian, Centre Culturel Portugais, 1984.
• PINTO, Sérgio da Silva, Braga et Francisco Sanches: discours prononcé à l'Université de Toulouse, à la séance solennele des commemorations du IVème centenaire de Francisco Sanchez, le 12 Juin 1951, Braga: Cruz, 1951.
• PINTO, Sérgio da Silva, Francisco Sanches, português, Braga: Bracara Augusta, 1952.
• PINTO, Sérgio da Silva, Francisco Sanches, vida e obra, Braga 1952.
• SÁ, Artur Moreira de, Raízes e projecção do pensamento de Francisco Sanches, Braga: University of Braga, 1955.
• SÁ, Artur Moreira de, Francisco Sanches, Filósofo e Matemático, Lisboa, 1947.
• SILVA, Lúcio Craveiro da, Actualidade de Francisco Sanches, Francisco Sanches Filósofo, and Francisco Sanches nas correntes do pensamento renascentino, in Ensaios de Filosofia e Cultura Portuguesa, Braga, 1994.
• TAVARES, Severino, Lúcio Craveiro da SILVA, Diamantino MARTINS and Luís de PINA, Francisco Sanches, no IV centenário do seu nascimento, Braga: University of Braga, 1951.

External links

• Media related to at Wikimedia Commons