Every Israelite has a duty to study whether he is poor or rich, whether healthy or suffering, whether young or very old and in failing strength, even if he is poor and supported by charity or begs from door to door.

The passage, “And He rested on the seventh day” (Exod. xx. 11) is interpreted as follows: On the seventh Day the forces and laws were complete, which during the previous six days were in the state of being established for the preservation of the Universe. They were not to be increased or modified.

You know from the repeated declarations in the Law that the principal purpose of the whole Law was the removal and utter destruction of idolatry, and all that is connected therewith, even its name, and everything that might lead to any such practices, e.g., acting as a consulter with familiar spirits, or as a wizard, passing children through the fire, divining, observing the clouds, enchanting, charming, or inquiring of the dead. The law prohibits us to imitate the heathen in any of these deeds, and a fortiori to adopt them entirely. It is distinctly said in the Law that everything which idolaters consider as service to their gods, and a means of approaching them, is rejected and despised by God... Thus all precepts cautioning against idolatry, or against that which is connected therewith, leads to it, or is related to it, are evidently useful.

This shows the kindness of God to His creatures, even to us weak beings. His righteousness and justice as regards all animals are well known; for in the transient world there is among the various kinds of animals no individual being distinguished from the rest of the same species... all physical, psychical, and vital forces and organs that are possessed by one individual are found also in the other individuals. If any one is somehow different it is by accident, in consequence of some exception, and not by a natural property; it is also a rare occurrence.

My object in adopting this arrangement is that the truths should be at one time apparent and at another time concealed. Thus we shall not be in opposition to the Divine Will (from which it is wrong to deviate) which has withheld from the multitude the truths required for the knowledge of God, according to the words, "The secret of the Lord is with them that fear Him." (Psalm 25:14)

The soul, when accustomed to superfluous things, acquires a strong habit of desiring things which are neither necessary for the preservation of the individual nor for that of the species. This desire is without limit, whilst those which are necessary are few in number and restricted within certain limits; but what is superfluous is without end...

The question, "What is the purpose thereof?" cannot be asked about anything which is not the product of an agent; therefore we cannot ask what is the purpose of the existence of God.

A man shall not be full of laughter and mockery, nor sad and mournful, but joyful. ... His desire shall not be so great that he rushes for wealth, nor shall he be lazy and refrain from working. But he shall live in contentment, have a modest occupation, and be occupied mainly with the Torah.

We naturally like what we have been accustomed to, and are attracted towards it. [...] 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.

Maimonides was a zealous disciple of Aristotle, although the theory of the Kalām might seem to have been more congenial to Jewish thought and belief. The Kalām upheld the theory of God’s Existence, Incorporeality, and Unity, together with the creatio ex nihilo. Maimonides nevertheless opposed the Kalām, and, anticipating the question, why preference should be given to the system of Aristotle, which included the theory of the Eternity of the Universe, a theory contrary to the fundamental teaching of the Scriptures, he exposed the weakness of the Kalām and its fallacies.

By following entirely the guidance of lust, in the manner of fools, man loses his intellectual energy, injures his body, and perishes before his natural time; sighs and cares multiply; there is an increase of envy, hatred, and warfare, for the purpose of taking what another possesses. The cause of all this is the circumstance that the ignorant considers physical enjoyment as an object to be sought for its own sake. God in His wisdom has therefore given us such commandments as would counteract that object, and prevent us altogether from directing our attention to it, and has debarred us from everything that leads only to excessive desire and to lust. This is an important thing included in the objects of our Law.