All forces that reside in the body are angels.

God is identical with His attributes, so that it may be said that He is the knowledge, the knower, and the known.

It is of great advantage that man should know his station, and not imagine that the whole universe exists only for him.

Astrology is not an art, it is a disease.

There is no difference between the pain of humans and the pain of other living beings, since the love and tenderness of the mother for the young are not produced by reasoning, but by feeling, and this faculty exists not only in humans but in most living beings.

The same is the case with those opinions of man to which he has been accustomed from his youth; he likes them, defends them, and shuns the opposite views.

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.