Musar su Deuteronomio 16:19

[And, in truth, just as we find that the Holy One Blessed be He sanctified the tribe of Levi and exhorted Israel not to forsake it, as it is written (Devarim 16:19): "Take heed unto yourself lest you forsake the Levite all of your days upon your land," so, it is, likewise, the will of the Blessed L-rd that we support men who separate themselves from the affairs of the world in order to serve the L-rd. For this is certainly not inferior to supporting the Levite in this regard. As Rambam writes (Hilchoth Shemitah Veyovel, Chapter 13 Halachah 12 and 13): "Why did the Levite not merit inheritance in Eretz Yisrael and in its spoils with his brothers? For he was singled out to serve the L-rd, to minister unto Him and to teach His just ways and righteous judgments to the people, as it is written (Devarim 33:10): 'They shall teach Your judgments to Jacob and Your Torah to Israel.' Therefore, they were separated from the ways of the world. They do not wage war, as do the rest of Israel, they do not inherit, and they do not merit things for themselves with the strength of their bodies, but they are "the army of the L-rd," as it is written (Ibid. 11): 'The L-rd bless his [Levi's] strength.' And the Holy One Blessed be He bequeaths [things] on them, as it is written (Numbers 18:20): 'I am your [Levi's] portion and your inheritance.' And [this applies] not only to the tribe of Levi alone, but to every man of all those who enter the world, whose spirit moves him, and who understands of himself to be separate, to stand before the L-rd, to minister unto Him and to serve Him, to know the L-rd and to walk justly, as G-d made him. And he divests himself of the many "accountings" that men seek, he is sanctified as "holy of holies," and the L-rd becomes his portion and his inheritance for ever and ever. And He bequeaths to him in this world what suffices him, as He did to the Cohanim and the Levites. As David, may peace be upon him said (Psalms 16:5): 'The L-rd is the portion of my inheritance.'" Until here, his (Rambam's) beautiful language.]

לא תטה משפט . This must be explained similarly to the words ימין ושמאל in 17,11: even if the Sanhedrin were to declare that "right is left" and "left is right," their verdict must be accepted. As we have explained earlier, verdicts which sound patently wrong must have been the result of the application by the court of the principle of הוראת שעה, i.e. that the overriding considerations of the authorities in charge were the demands of the hour. This was not the plain meaning of this verse, the פשט.

Therefore, you must set your heart and all your mind on the Torah at all times. For in the Torah a man learns wisdom, proper conduct, humility, modesty, and all good deeds, and Heaven will provide him his necessities. And the Torah guards him and uplifts him and exalts him, as the Sages taught : Rabbi Meir said, "Everyone who occupies himself with the Torah for its own sake merits many things ; and not only this, but he is worthy of all the world. He is called friend, beloved … and it raises him and exalts him over all created things" (Aboth 6:1). And lo the fruit of the reward for this devotion to Torah is in this world, and in the world to come the reward is such that no eye has seen it but the eye of God (see Is. 64:3), and there is nothing greater than that reward in the world to come. They said in the Midrash (Ruth Rabbah 1:1 letter 2) : Rabbi asked Rabbi Bezalel, "What is the meaning of what is written in Hosea 2:1, 'For their mother had played the harlot' "? And he said to him, "When do the words of the Torah become like harlots? When those who study them shame them by their conduct. How would that be? A wise man sits and learns 'you shall not incline or wrest judgment' (Deut. 16:19), but he does in fact wrest judgment. He studies, 'You shall not be prejudiced in favor of the mighty,' but he does respect the presence of a wealthy or powerful person in court. 'You shall not take a bribe,' and he does take a bribe!"