Question: We say (Pesachim 50a) that one should always engage in Torah, even if it is not Lishmah, for amidst Lo Lishmah he will come to Lishmah!

Answer: There are two kinds of Lo Lishmah. We say that one should always engage in Torah even Lo Lishmah, i.e. in order that he will be called Rebbi, or so people will honor him;

We say here that if one engages in Torah Lo Lishmah, it becomes a lethal poison for him, i.e. if he learns in order to provoke.

Explanation: Learn in front of him (be his Talmid) and do not cut off, i.e. do not depart from him to go in front of another Rav;

If not (he is not proper), do not learn in front of him.

Question: We say that we learn from a Chacham even if he is not proper, like R. Meir, who learned in front of Acher (Chagigah 15a)!

Answer: Only a Talmid Chacham can learn from him, in order that he will not learn from his deeds;

If he (the Talmid) is not a Chacham, he may not learn in front of him.

Citation (Eruvin 55a): "Lo ba'Shamayim Hi v'Lo me'Ever la'Yam Hi", i.e. you will not find Torah in one who elevates himself like Shamayim, i.e. he is haughty;

It is not found in merchants who go to Medinas ha'Yam (overseas) - if one is a Chacham, he is not a robber. If he is a robber, he is not a Chacham. (Maharsha (Avodah Zarah 17b) explains that a Chacham does not have time to steal. It seems that all the more so, he does not have time to go overseas on business.)

Citation (cont.): We say also there that it (Torah) is not found among merchants, wholesalers and stargazers.

Citation (cont.): They said to Shmuel "you are a stargazer"! (How can you also be a Chacham?)

Citation (cont.) Shmuel: I look at them (stars) only when I go out for water.

Explanation: I look at them only when I go to urinate. I am not Mevatel myself [from Torah for this].

Explanation: If they would hate beauty they would be bigger Chachamim.

Explanation: This connotes that it refers back to rain. If so, it is because the day of rain is great like the day that Shamayim and the land were created, that Hash-m boasts about this;

Had it said Berasim, this would connote that it refers back to Shamayim and the land.

Explanation: Due to false speech, that he says Lashon ha'Ra, the north wind is Mevatel the rain. This is "an angry countenance."

Implied question: We say in Kidushin (28a) that if Ploni calls Reuven a Rasha, Reuven may encroach on Ploni's income (some say -hit him)!

Answer: Here it is permitted. Surely, [one who is brazen] stumbled in an Aveirah, and persists in his rebellion. His countenance testifies about him.

Explanation: This word is from the same root as Beharos (appearances of Tzara'as), Trukash (stains) in old French.