ועל זה נאמר והחזקת בו גר ותושב וחי עמך כלומר החזק בו עד שלא יפול ויצטרך (translation needed) - Moshe ben Maimon

Divine Providence is connected with Divine intellectual influence, and the same beings which are benefited by the latter so as to become intellectual, and to comprehend things comprehensible to rational beings, are also under the control of Divine Providence, which examines all their deeds with a view of rewarding or punishing them. ...the method of which our mind is incapable of understanding.

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 therefore undertook to compile a complete code, which would contain, in the language and style of the Mishnah, and without discussion, the whole of the Written and the Oral Law, all the precepts recorded in the Talmud, Sifra, Sifre and Tosefta, and the decisions of the Geonim.