On the topic of Rabbi Meir and his Torah study, the Gemara cites an additional statement. Rabbi Aḥa bar Ḥanina said: It is revealed and known before the One Who spoke and the world came into being that in the generation of Rabbi Meir there was no one of the Sages who is his equal. Why then didn’t the Sages establish the halakha in accordance with his opinion? It is because his colleagues were unable to ascertain the profundity of his opinion. He was so brilliant that he could present a cogent argument for any position, even if it was not consistent with the prevalent halakha. As he would state with regard to a ritually impure item that it is pure, and display justification for that ruling, and likewise he would state with regard to a ritually pure item that it is impure, and display justification for that ruling. The Sages were unable to distinguish between the statements that were halakha and those that were not.

Rabbi Yoḥanan said: When Rabbi Meir would teach his lecture he would expound one-third halakha, one-third aggada, and one-third parables. And Rabbi Yoḥanan says: Rabbi Meir had, i.e., taught, three hundred parables of foxes, and we have only three.

The Gemara raises an objection to Rabbi Yoḥanan’s statement from a baraita: Rabbi Meir would say: From where is it derived that even a gentile who engages in Torah study is considered like a High Priest? It is derived from that which is stated: “You shall therefore keep My statutes and My ordinances, which if a man does he shall live by them” (Leviticus 18:5). The phrase: Which if priests, Levites, and Israelites do they shall live by them, is not stated, but rather: “A man,” which indicates mankind in general. You have therefore learned that even a gentile who engages in Torah study is considered like a High Priest.

...a baraita: The verse: “You are the sons to the Lord your God,” indicates that when you act like sons and cleave to the Holy One, Blessed be He, you are called sons, but when you do not act like sons you are not called sons. This is the statement of Rabbi Yehuda. And Rabbi Meir says: Either way you are still called sons, as it is stated: “They are foolish sons” (Jeremiah 4:22). And it also states: “Sons in whom there is no faithfulness” (Deuteronomy 32:20). ...

The Gemara cites a related story: The Sages taught: There was once an incident involving Aḥer [='the other,' a reference to the heretic Elisha ben Abuyah] , who was riding on a horse on Shabbat, and Rabbi Meir was walking behind him to learn Torah from him. After a while, Aḥer said to him: Meir, turn back, for I have already estimated and measured according to the steps of my horse that the Shabbat boundary ends here, and you may therefore venture no further. Rabbi Meir said to him: You, too, return to the correct path. He said to him: But have I not already told you that I have already heard behind the dividing curtain: “Return, rebellious children,” apart from Aḥer?

Ribbi [=Rabbi] Yose, son of Ribbi Ḥalaphta, praised Ribbi Meïr before the people of Sepphoris: A great, holy, and meek man.

...Berurya, wife of Rabbi Meir and daughter of Rabbi Ḥananya ben Teradyon, was so sharp and had such a good memory that she learned three hundred halakhot in one day from three hundred Sages

Regarding a "klustra" (door bolt): Rabbi Tarfon declares it impure, but the Sages declare it pure. Beruriah says, "[One may] remove it from this doorway and hang it on the neighboring doorway on Shabbat." When these words were spoken before Rabbi Joshua, he said, "Beruriah has spoken well (i.e., correctly)."

There were hooligans in Rabbi Meir’s neighborhood who caused him a great deal of anguish. Rabbi Meir prayed for God to have mercy on them, that they should die. Rabbi Meir’s wife, Berurya, said to him: What is your thinking? On what basis do you pray for the death of these hooligans? Do you base yourself on the verse, as it is written: “Let sins cease from the land” (Psalms 104:35), which you interpret to mean that the world would be better if the wicked were destroyed? But is it written, let sinners cease?” Let sins cease, is written. One should pray for an end to their transgressions, not for the demise of the transgressors themselves. Moreover, go to the end of the verse, where it says: “And the wicked will be no more.” If, as you suggest, transgressions shall cease refers to the demise of the evildoers, how is it possible that the wicked will be no more, i.e., that they will no longer be evil? Rather, pray for God to have mercy on them, that they should repent, as if they repent, then the wicked will be no more, as they will have repented. Rabbi Meir saw that Berurya was correct and he prayed for God to have mercy on them, and they repented.

"A valiant woman, who can find" (Proverbs 31:10):

...

It was taught: "Ma'aseh / It once happened that Rabbi Meir was sitting and expounding in the study hall on Shabbat afternoon, when two of his sons died. What did their mother [=Berurya] do? She placed both of them on the bed and spread a sheet over them. At the end of Shabbat, Rabbi Meir came home from the study hall. He said to her, 'Where are my two sons?' She said [back], 'They went to the study hall.' He said to her, 'I scanned the study hall and I did not see them.' They gave him the cup of Havdalah and he separated [the days of the week with the closure of Shabbat]. He repeated and said, 'Where are my two sons?' She said, 'They went elsewhere and they are coming now.' She placed food in front of him and he ate and blessed. After he blessed, she said to him, 'I have a question to ask you.' He said to her, 'Say your question.' She said to him, 'Rabbi, before today, a man came and deposited something with me, and now he is coming to take it. Should we return it to him or not?' He said, 'My daughter, one who has a deposit with him must return it to its owner.' She said to him, 'Were it not for your consent, I would not have given it to him.' What did she do? She grabbed his hand, brought him up to that room, had him approach the bed and took off the sheet from upon them. When he saw both of them dead and laying upon the bed, he began to cry and say, 'My sons, my sons, my teachers, my teachers - my sons in the way of the world, my teachers in that they would enlighten my eyes with their Torah.' At that time, she said to Rabbi Meir, 'Rabbi, is this not what I told you - do I not need to return the deposit to its Owner?' He said, '"The Lord has given and the Lord has taken; may the name of the Lord be blessed"' (Job 1:21)." Rabbi Chanina said, "With this thing, she consoled him and his mind became composed - that is why it states, 'A valiant woman, who can find.'"

(10)Rabbi Meir said:

Engage but little in business, and occupy yourself with the Torah.

Be of humble spirit before everyone.

And if you have neglected the Torah, you shall have many [inducements] to neglect [Torah].

And if you have labored in Torah, He has a great reward to give to you.