Maimonides

Maimonides
Moshe ben Maimon, or Mūsā ibn Maymūn, acronymed Rambam, and GraecizedMoses Maimonides, a preeminent medieval Sephardic Jewish philosopher and astronomer, became one of the most prolific and influential Torah scholars and physicians of the Middle Ages. Born in Cordova, Almoravid Empireon Passover Eve, 1135 or 1138, he died in Egypt on December 12, 1204, whence his body was taken to the lower Galilee and buried in Tiberias. He worked as a rabbi, physician, and philosopher in Morocco and Egypt...
NationalitySpanish
ProfessionPhilosopher
Date of Birth30 March 1135
CountrySpain
Transient bodies are only subject to destruction through their substance and not through their form, nor can the essence of their form be destroyed; in this respect they are permanent.
The soul is subject to health and disease, just as is the body. The health and disease of both . . . undoubtedly depend upon beliefs and customs, which are peculiar to mankind.
The first kind of evil is that which is caused to man by the circumstance that he is subject to genesis and destruction, or that he possesses a body.
Man's shortcomings and sins are all due to the substance of the body and not to its form; while all his merits are exclusively due to his form.
All forces that reside in the body are angels.
In so far as the soul is a force residing in the body; it has therefore been said that the properties of the soul depend of the condition of the body.
If a person studies too much and exhausts his reflective powers, he will be confused, and will not be able to apprehend even that which had been within the power of his apprehension. For the powers of the body are all alike in this respect.
You know already that most of the lusts and licentiousness of the multitude consist in an appetite for eating, drinking and sexual intercourse.
You will find that there is no other difference of opinion as regards any portions of the Universe, except that the philosophers believe in the Eternity of the Universe and we believe in the Creation. Note this.
You must consider, when reading this treatise, that mental perception, because connected with matter, is subject to conditions similar to those to which physical perception is subject.
For it is said, "You shall strengthen the stranger and the dweller in your midst and live with him," that is to say, strengthen him until he needs no longer fall upon the mercy of the community or be in need.
Know that for the human mind there are certain objects of perception which are within the scope of its nature and capacity; on the other hand, there are, amongst things which actually exist, certain objects which the mind can in no way and by no means grasp: the gates of perception are closed against it.
Further, there are things of which the mind understands one part, but remains ignorant of the other; and when man is able to comprehend certain things, it does not follow that he must be able to comprehend everything.
The business conduct of the disciples of wise men is truthful and faithful.... He does not allow himself to be made a surety or a guarantor and does not accept the power of attorney.... He lends money and is gracious. He shall not take away business from his fellow man.