Leeches should be kept a day before applying them. They should be squeezed to make them eject the contents of their stomachs.
AVICENNANow 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.
More Avicenna Quotes
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The world is divided into men who have wit and no religion and men who have religion and no wit.
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Is it the fault of wine if a fool drinks it and goes stumbling into darkness?
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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 -
Those who deny the first principle should be flogged or burned until they admit that it is not the same thing to be burned and not burned, or whipped and not whipped.
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An ignorant doctor is the aide-de-camp of death.
AVICENNA -
A horse is simply a horse.
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That whose existence is necessary must necessarily be one essence.
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As to the mental essence, we find it in infants devoid of every mental form.
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It is in the nature of water … to become transformed into earth through a predominating earthy virtue; … it is in the nature of earth to become transformed into water through a predominating aqueous virtue.
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When you do not know the nature of the malady, leave it to nature; do not strive to hasten matters. For either nature will bring about the cure or it will itself reveal clearly what the malady really is.
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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.
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There are no incurable diseases – only the lack of will. There are no worthless herbs – only the lack of knowledge.
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The more brilliant the lightning, the quicker it disappears.
AVICENNA -
Medicine considers the human body as to the means by which it is cured and by which it is driven away from health.
AVICENNA -
Width of life is more important than length of life.
AVICENNA