Mountains have been formed by one [or other] of the causes of the formation of stone, most probably … - Avicenna

Same topic Authors

Quote of the day

I do still get extremely nervous before speeches. My biggest fear is that I'll be standing there in front of hundreds of people and be incapable of talking. I'm afraid that I'll make a complete fool of myself and be unable to go on.

Avicenna

Mountains have been formed by one [or other] of the causes of the formation of stone, most probably from agglutinative clay which slowly dried and petrified during ages of which we have no record. It seems likely that this habitable world was in former days uninhabitable and, indeed, submerged beneath the ocean. Then, becoming exposed little by little, it petrified in the course of ages.

Age, Days, Formed, Mountain, Ocean, Petrified

Same Author Quotes

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.

Accidents, Beginnings, Causes, Essentials, Sciences, Study

A horse is simply a horse.

Horse, Simply

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].

Congelation, General, Rocks, Science, Two, Ways

The physical signs of measles are nearly the same as those of smallpox, but nausea and inflammation is more severe, though the pains in the back are less.

Inflammation, Measles, Nausea, Nearly, Pain, Same

Leeches should be kept a day before applying them. They should be squeezed to make them eject the contents of their stomachs.

Contents, Kept, Leeches, Make, Should