Quotes by Avicenna

Therefore in medicine we ought to know the causes of sickness and health.

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The world is divided into men who have wit and no religion and men who...

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The knowledge of anything, since all things have causes, is not acquired or complete unless...

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That whose existence is necessary must necessarily be one essence.

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Now it is established in the sciences that no knowledge is acquired save through the...

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As to the mental essence, we find it in infants devoid of every mental form.

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