Avicenna citáty

 Avicenna foto
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Avicenna

Dátum narodenia: 21. august 980
Dátum úmrtia: 24. jún 1037
Ďalšie mená:Ibn Síná

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Ibn Síná alebo Avicena alebo Avicenna bol stredoveký perzský filozof, predstaviteľ východnej vetvy arabskej filozofie, lekár, prírodovedec, politik a básnik.

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Citáty Avicenna

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„The knowledge of anything, since all things have causes, is not acquired or complete unless it is known by its causes.“

—  Avicenna
Context: The knowledge of anything, since all things have causes, is not acquired or complete unless it is known by its causes. Therefore in medicine we ought to know the causes of sickness and health. And because health and sickness and their causes are sometimes manifest, and sometimes hidden and not to be comprehended except by the study of symptoms, we must also study the symptoms of health and disease. Now it is established in the sciences that no knowledge is acquired save through the study of its causes and beginnings, if it has had causes and beginnings; nor completed except by knowledge of its accidents and accompanying essentials. Of these causes there are four kinds: material, efficient, formal, and final. [http://www.fordham.edu/halsall/source/1020Avicenna-Medicine.html "On Medicine, (c. 1020)]

„Now it is established in the sciences that no knowledge is acquired save through the study of its causes and beginnings, if it has had causes and beginnings; nor completed except by knowledge of its accidents and accompanying essentials.“

—  Avicenna
Context: The knowledge of anything, since all things have causes, is not acquired or complete unless it is known by its causes. Therefore in medicine we ought to know the causes of sickness and health. And because health and sickness and their causes are sometimes manifest, and sometimes hidden and not to be comprehended except by the study of symptoms, we must also study the symptoms of health and disease. Now it is established in the sciences that no knowledge is acquired save through the study of its causes and beginnings, if it has had causes and beginnings; nor completed except by knowledge of its accidents and accompanying essentials. Of these causes there are four kinds: material, efficient, formal, and final. [http://www.fordham.edu/halsall/source/1020Avicenna-Medicine.html "On Medicine, (c. 1020)]

„God, the supreme being, is neither circumscribed by space, nor touched by time; he cannot be found in a particular direction, and his essence cannot change.“

—  Avicenna
Context: God, the supreme being, is neither circumscribed by space, nor touched by time; he cannot be found in a particular direction, and his essence cannot change. The secret conversation is thus entirely spiritual; it is a direct encounter between God and the soul, abstracted from all material constraints. As quoted in 366 Readings From Islam (2000), edited by Robert Van der Weyer

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