Quote

Pure earth does not petrify, because the predominance of dryness over [i.e. in] the earth endows it not with coherence but rather with crumbliness. In general, stone is formed in two ways only (a) through the hardening of clay, and (b) by the congelation [of waters].

Avicenna

Change background

T
T
T

Change font

TAGS & TOPICS

Avicenna
Astronomer
Chemist
Ethicist
Islamic Jurist
Mathematician
Music Theorist
Philosopher
Physician
Physicist
Poet
Scientist
Pūr-i Sīnā
Aboû Alî al-Hosain ibn Abdallâh ibn Sînâ
Abitianus
Ibn Sīnā
Water
Formed
Science
Stone
Dryness
Two
Stones
Predominance
Doe
Rocks
Endows
Earth
General
Hardening
Way
Pure
Coherence
Ways
Waters
Rather
Clay

More quotes by Avicenna

Image
An ignorant doctor is the aide-de-camp of death.
Avicenna
Image
That whose existence is necessary must necessarily be one essence.
Avicenna
Image
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.
Avicenna
Image
In God alone, essence (what He is) and existence (that he is) coincide.
Avicenna
Image
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.
Avicenna
Image
As to the mental essence, we find it in infants devoid of every mental form.
Avicenna
Image
Pain is a sensation produced by something contrary to the course of nature and this sensation is set up by one of two circumstances: either a very sudden change of the temperament (or the bad effect of a contrary temperament) or a solution of continuity.
Avicenna
Image
The world is divided into men who have wit and no religion and men who have religion and no wit.
Avicenna
Image
The different sorts of madness are innumerable.
Avicenna
Image
The knowledge of anything, since all things have causes, is not acquired or complete unless it is known by its causes.
Avicenna