עֲשֵׂה לְךָ רַב

(6) Yehoshua ben Perachiah and Nitai of Arbel received from them. Yehoshua ben Perachia says, "Make for yourself a mentor, acquire for yourself a friend and judge every person as meritorious."

(16) Rabban Gamliel says, "Make for yourself a mentor, remove yourself from doubt and do not frequently tithe by estimation."

(1) "Make for yourself a mentor": He means to say even if he is not fit to be your mentor; still place him upon you as a mentor, so that you can give and take (discuss and argue) with him, and as a result of this the study of wisdom will come to your hand. As the study of a man on his own is good, but his study from someone else will be better established in his hand and it will be more clear - and even if he is like him in wisdom or below him. And so did they elucidate the explanation of this commandment. And he said, "acquire for yourself a friend". He said it with an expression of acquisition and he did not say, "Make for yourself a friend," or "Befriend others." The intention of this is that a person must acquire a friend for himself, so that all of his deeds and all of his matters be refined through him, as they said (Taanit 23a), "Either a friend or death." And if he does not find him, he must make efforts for it with all his heart, and even if he must lead him to his friendship, until he becomes a friend. And [then] he must never let off from following [his friend's] will, until his friendship is firmed up. [It is] as the masters of ethics say, "When you love, do not love according to your traits; but rather love according to the trait of your friend." And when each of the friends has the intention to fulfill the will of his friend, the intention of both of them will be one without a doubt. And how good is the statement of Aristotle, "The friend is one." And there are three types of friends: a friend for benefit, a friend for enjoyment and a friend for virtue. Indeed, a friend for benefit is like the friendship of two [business] partners and the friendship of a king and his retinue; whereas the friendship for enjoyment is of two types - the friend for pleasure and the friend for confidence. Indeed, the friend for pleasure is like the friendship of males and females and similar to it; whereas the friend for confidence is when a man has a friend to whom he can confide his soul. He will not keep [anything] from him - not in action and not in speech. And he will make him know all of his affairs - the good ones and the disgraceful - without fearing from him that any loss will come to him with all of this, not from him and not from another. As when a person has such a level of confidence in a man, he finds great enjoyment in his words and in his great friendship. And a friend for virtue is when the desire of both of them and their intention is for one thing, and that is the good. And each one wants to be helped by his friend in reaching this good for both of them together. And this is the friend which he commanded to acquire; and it is like the love of the master for the student and of the student for the master.

(1) Rabban Gamliel says, "Make for yourself a mentor, remove yourself from doubt and do not frequently tithe by estimation." That which he commanded here to make a mentor is not regarding study, but rather legal decisions: place for yourself a mentor, that you can rely upon in the forbidden and the permissible, and you can remove yourself from doubt. [It is] as they say in Talmud Yerushalmi Moed Katan 1:10, "Go and bring me an elder from the marketplace and I will rely upon him and permit [it] to you." And so [too] did he command to flee from putting out tithes by estimation, because it is from the doubts.

(1) "Make for yourself a (Torah) mentor": Rambam explained, “Even though he is not fit to be your teacher, make him into your teacher and do not learn on your own.” And I heard, “'Make for yourself a teacher,' [meaning] that he should take on one teacher from which always to learn – and not learn from one today and from another one tomorrow." And even though they stated in tractate Avodah Zara 19, “One who learns from [only] one teacher will not see a sign of blessing;” they have already explained and said, “this applies to reasoning” - as it is good for him to hear the reasoning of the many - “but with concern to [memorization of traditional teachings], it is better from one teacher, so that [the student's] elocution not be damaged."

(1) ”Make for yourself a mentor:”: It is now speaking concerning the matter of jurisdiction. If a case comes in front of you and you are in doubt about it, make for yourself a mentor, and remove yourself from doubt. And do not decide upon it by yourself; as it was with Rava: when a possibly unfit animal was brought to him, he would gather all of the slaughterers of Mata Machsia – he would say, “So that we will [all only] receive a chip of the beam."