Being an Upstander
(יח) לֹֽא־תִקֹּ֤ם וְלֹֽא־תִטֹּר֙ אֶת־בְּנֵ֣י עַמֶּ֔ךָ וְאָֽהַבְתָּ֥ לְרֵעֲךָ֖ כָּמ֑וֹךָ אֲנִ֖י ה'
(18) You shall not take vengeance or bear a grudge against your countrymen. Love your fellow as yourself: I am the LORD.
תני תנא קמיה דרב נחמן בר יצחק כל המלבין פני חבירו ברבים כאילו שופך דמים א"ל שפיר קא אמרת דחזינא ליה דאזיל סומקא ואתי חוורא אמר ליה אביי לרב דימי במערבא במאי זהירי א"ל באחוורי אפי דאמר רבי חנינא הכל יורדין לגיהנם חוץ משלשה
The Gemara relates that the tanna who recited mishnayot and baraitot in the study hall taught a baraita before Rav Naḥman bar Yitzḥak: Anyone who humiliates another in public, it is as though he were spilling blood. Rav Naḥman bar Yitzḥak said to him: You have spoken well, as we see that after the humiliated person blushes, the red leaves his face and pallor comes in its place, which is tantamount to spilling his blood. Abaye said to Rav Dimi: In the West, i.e., Eretz Yisrael, with regard to what mitzva are they particularly vigilant? Rav Dimi said to him: They are vigilant in refraining from humiliating others, as Rabbi Ḥanina says: Everyone descends to Gehenna except for three.

(יח) רַבִּי שִׁמְעוֹן בֶּן אֶלְעָזָר אוֹמֵר, אַל תְּרַצֶּה אֶת חֲבֵרְךָ בִשְׁעַת כַּעֲסוֹ, וְאַל תְּנַחֲמֶנּוּ בְּשָׁעָה שֶׁמֵּתוֹ מֻטָּל לְפָנָיו, וְאַל תִּשְׁאַל לוֹ בִשְׁעַת נִדְרוֹ, וְאַל תִּשְׁתַּדֵּל לִרְאוֹתוֹ בִשְׁעַת קַלְקָלָתוֹ:

(18) Rabbi Shimon ben Elazar says: Do not assuage the anger of your friend at the time of his anger; do not console him at the time when his deceased lies before him; do not question him at the time of his vow; and do not seek to see him at the time of his humiliation.

תניא אבא בנימין אומר שנים שנכנסו להתפלל וקדם אחד מהם להתפלל ולא המתין את חברו ויצא טורפין לו תפלתו בפניו שנאמר (איוב יח, ד) טורף נפשו באפו הלמענך תעזב ארץ

Another of Abba Binyamin’s statements with regard to the laws of prayer was taught in a baraita: Abba Binyamin says: If two people enter a synagogue outside of the city in order to pray, and one began praying before the other and did not wait for the other person to complete his prayer, and left him alone in the synagogue, his prayer is thrown back in his face. Because he left the other person alone and caused him to be distracted during his prayer, his own prayer is thrown back in his face, as it is stated: “You who throw your soul in your face, for your sake will the earth be forsaken? The Rock will be moved from its place” (Job 18:4). This verse indicates that one who left the other person alone effectively causes his soul, as prayer is the outpouring of the soul before God, to be thrown in his face.

(יא) וַיְהִ֣י ׀ בַּיָּמִ֣ים הָהֵ֗ם וַיִּגְדַּ֤ל מֹשֶׁה֙ וַיֵּצֵ֣א אֶל־אֶחָ֔יו וַיַּ֖רְא בְּסִבְלֹתָ֑ם וַיַּרְא֙ אִ֣ישׁ מִצְרִ֔י מַכֶּ֥ה אִישׁ־עִבְרִ֖י מֵאֶחָֽיו׃ (יב) וַיִּ֤פֶן כֹּה֙ וָכֹ֔ה וַיַּ֖רְא כִּ֣י אֵ֣ין אִ֑ישׁ וַיַּךְ֙ אֶת־הַמִּצְרִ֔י וַֽיִּטְמְנֵ֖הוּ בַּחֽוֹל׃ (יג) וַיֵּצֵא֙ בַּיּ֣וֹם הַשֵּׁנִ֔י וְהִנֵּ֛ה שְׁנֵֽי־אֲנָשִׁ֥ים עִבְרִ֖ים נִצִּ֑ים וַיֹּ֙אמֶר֙ לָֽרָשָׁ֔ע לָ֥מָּה תַכֶּ֖ה רֵעֶֽךָ׃ (יד) וַ֠יֹּאמֶר מִ֣י שָֽׂמְךָ֞ לְאִ֨ישׁ שַׂ֤ר וְשֹׁפֵט֙ עָלֵ֔ינוּ הַלְהָרְגֵ֙נִי֙ אַתָּ֣ה אֹמֵ֔ר כַּאֲשֶׁ֥ר הָרַ֖גְתָּ אֶת־הַמִּצְרִ֑י וַיִּירָ֤א מֹשֶׁה֙ וַיֹּאמַ֔ר אָכֵ֖ן נוֹדַ֥ע הַדָּבָֽר׃
(11) Some time after that, when Moses had grown up, he went out to his kinsfolk and witnessed their labors. He saw an Egyptian beating a Hebrew, one of his kinsmen. (12) He turned this way and that and, seeing no one about, he struck down the Egyptian and hid him in the sand. (13) When he went out the next day, he found two Hebrews fighting; so he said to the offender, “Why do you strike your fellow?” (14) He retorted, “Who made you chief and ruler over us? Do you mean to kill me as you killed the Egyptian?” Moses was frightened, and thought: Then the matter is known!

(ט) אָמַר לָהֶם, צְאוּ וּרְאוּ אֵיזוֹהִי דֶרֶךְ יְשָׁרָה שֶׁיִּדְבַּק בָּהּ הָאָדָם. רַבִּי אֱלִיעֶזֶר אוֹמֵר, עַיִן טוֹבָה. רַבִּי יְהוֹשֻׁעַ אוֹמֵר, חָבֵר טוֹב. רַבִּי יוֹסֵי אוֹמֵר, שָׁכֵן טוֹב. רַבִּי שִׁמְעוֹן אוֹמֵר, הָרוֹאֶה אֶת הַנּוֹלָד. רַבִּי אֶלְעָזָר אוֹמֵר, לֵב טוֹב. אָמַר לָהֶם, רוֹאֶה אֲנִי אֶת דִּבְרֵי אֶלְעָזָר בֶּן עֲרָךְ מִדִּבְרֵיכֶם, שֶׁבִּכְלָל דְּבָרָיו דִּבְרֵיכֶם. אָמַר לָהֶם צְאוּ וּרְאוּ אֵיזוֹהִי דֶרֶךְ רָעָה שֶׁיִּתְרַחֵק מִמֶּנָּה הָאָדָם. רַבִּי אֱלִיעֶזֶר אוֹמֵר, עַיִן רָעָה. רַבִּי יְהוֹשֻׁעַ אוֹמֵר, חָבֵר רָע. רַבִּי יוֹסֵי אוֹמֵר, שָׁכֵן רָע. רַבִּי שִׁמְעוֹן אוֹמֵר, הַלֹּוֶה וְאֵינוֹ מְשַׁלֵּם. אֶחָד הַלֹּוֶה מִן הָאָדָם, כְּלֹוֶה מִן הַמָּקוֹם בָּרוּךְ הוּא, שֶׁנֶּאֱמַר (תהלים לז) לֹוֶה רָשָׁע וְלֹא יְשַׁלֵּם, וְצַדִּיק חוֹנֵן וְנוֹתֵן. רַבִּי אֶלְעָזָר אוֹמֵר, לֵב רָע. אָמַר לָהֶם, רוֹאֶה אֲנִי אֶת דִּבְרֵי אֶלְעָזָר בֶּן עֲרָךְ מִדִּבְרֵיכֶם, שֶׁבִּכְלָל דְּבָרָיו דִּבְרֵיכֶם:

(י) הֵם אָמְרוּ שְׁלשָׁה דְבָרִים. רַבִּי אֱלִיעֶזֶר אוֹמֵר, יְהִי כְבוֹד חֲבֵרְךָ חָבִיב עָלֶיךָ כְּשֶׁלָּךְ, וְאַל תְּהִי נוֹחַ לִכְעֹס. וְשׁוּב יוֹם אֶחָד לִפְנֵי מִיתָתְךָ. וֶהֱוֵי מִתְחַמֵּם כְּנֶגֶד אוּרָן שֶׁל חֲכָמִים, וֶהֱוֵי זָהִיר בְּגַחַלְתָּן שֶׁלֹּא תִכָּוֶה, שֶׁנְּשִׁיכָתָן נְשִׁיכַת שׁוּעָל, וַעֲקִיצָתָן עֲקִיצַת עַקְרָב, וּלְחִישָׁתָן לְחִישַׁת שָׂרָף, וְכָל דִּבְרֵיהֶם כְּגַחֲלֵי אֵשׁ:

(יא) רַבִּי יְהוֹשֻׁעַ אוֹמֵר, עַיִן הָרָע, וְיֵצֶר הָרָע, וְשִׂנְאַת הַבְּרִיּוֹת, מוֹצִיאִין אֶת הָאָדָם מִן הָעוֹלָם:

(יב) רַבִּי יוֹסֵי אוֹמֵר, יְהִי מָמוֹן חֲבֵרְךָ חָבִיב עָלֶיךָ כְּשֶׁלָּךְ, וְהַתְקֵן עַצְמְךָ לִלְמֹד תּוֹרָה, שֶׁאֵינָהּ יְרֻשָּׁה לָךְ. וְכָל מַעֲשֶׂיךָ יִהְיוּ לְשֵׁם שָׁמָיִם:

(9) He said to them: Go out and see what is a straight path that a person should cling to. Rabbi Eliezer says: A good eye. Rabbi Yehoshua says: A good friend. Rabbi Yosi says: A good neighbor. Rabbi Shimon says: Seeing the consequences of one's actions. Rabbi Elazar says: A good heart. He said to them: I see the words of Rabbi Elazar ben Arakh [as better than] all of yours, because your words are included in his. He said to them: Go out and see what is an evil path that a person should distance himself from. Rabbi Eliezer says: A bad eye. Rabbi Yehoshua says: A bad friend. Rabbi Yosi says: A bad neighbor. Rabbi Shimon says: One who borrows but does not repay. Borrowing from a person is like borrowing from the Omnipresent blessed be He, as it says (Psalms 37:21) "The wicked borrow and do not repay, but the righteous one gives graciously." Rabbi Elazar says: A bad heart. He said to them: I see the words of Rabbi Elazar ben Arakh [as better than] all of yours, for your words are included in his. (10) They said three things. Rabbi Eliezer says: The honor of your friend should be as dear to you as your own, and do not be easy to anger, and repent one day before your death. And warm yourself by the fire of the Sages, but be cautious around their coals that you should not be burned, for their bite is the bite of a fox, and their sting is the sting of a scorpion, and their hiss is the hiss of a Seraph, and all of their words are like burning coals.

(11) Rabbi Yehoshua says: The evil eye, the evil inclination, and hatred of the creations remove a person from the world.

(12) Rabbi Yosi says: The money of your friend should be as dear to you as your own. Prepare yourself to study Torah, for it is not an inheritance for you. All of your actions should be for the sake of Heaven.

(כא) מָ֣וֶת וְ֭חַיִּים בְּיַד־לָשׁ֑וֹן.

(21) Death and life are in the power of the tongue.

ת"ש גדול כבוד הבריות שדוחה [את] לא תעשה שבתורה
The Gemara cites an additional proof from a baraita: Come and hear: Great is human dignity, as it overrides a prohibition in the Torah.

(ג) הוּא הָיָה אוֹמֵר, אַל תְּהִי בָז לְכָל אָדָם, וְאַל תְּהִי מַפְלִיג לְכָל דָּבָר, שֶׁאֵין לְךָ אָדָם שֶׁאֵין לוֹ שָׁעָה וְאֵין לְךָ דָבָר שֶׁאֵין לוֹ מָקוֹם:

(3) He would say: Do not disparage anyone, and do not shun any thing. For you have no man who does not have his hour, and you have no thing that does not have its place.

מַלְכָּהּ שֶׁל תּוֹרָה, בְּמִשְׁפָּט שֶׁהוּא עוֹשֵׂה, מַעֲמִיד אֶת הָאָרֶץ... אִם מֵשִׂים אָדָם עַצְמוֹ כִּתְרוּמָה הַזּוּ שְׁמוּשְׁלֶכֵת בְּזָוִיוֹת הַבָּיִת וְאוֹמֵר: מָה לִי בְּטוֹרַח הַצִּבּוּר ?מָה לִי בְּדִינֵיהֶם? מָה לִי לִשְׁמוֹעַ קוֹלָם? שָׁלוֹם עָלֶיךָ נַפְשִׁי! הֲרֵי זֶה מַחֲרִיב אֶת הָעוֹלָם.

Mishna Tanchum Mishpatim 2

If a person of learning participates in public affairs and serves as judge or arbiter, he gives stability to the land... But if he sits in his home and says to himself, “What have the affairs of society to do with me?... Why should I trouble myself with the people’s voices of protest? Let my soul dwell in peace!”—if he does this, he overthrows the world.

(ח) הוּא הָיָה אוֹמֵר, אַל תְּהִי דָן יְחִידִי, שֶׁאֵין דָּן יְחִידִי אֶלָּא אֶחָד. וְאַל תֹּאמַר קַבְּלוּ דַעְתִּי, שֶׁהֵן רַשָּׁאִין וְלֹא אָתָּה:

(8) He would say: Do not judge alone, for there is no lone judge aside from One [God]. And do not say,"Accept my opinion," for they are permitted and not you.

(יד) הוּא הָיָה אוֹמֵר, אִם אֵין אֲנִי לִי, מִי לִי. וּכְשֶׁאֲנִי לְעַצְמִי, מָה אֲנִי. וְאִם לֹא עַכְשָׁיו, אֵימָתָי:

(טו) שַׁמַּאי אוֹמֵר, עֲשֵׂה תוֹרָתְךָ קֶבַע. אֱמֹר מְעַט וַעֲשֵׂה הַרְבֵּה, וֶהֱוֵי מְקַבֵּל אֶת כָּל הָאָדָם בְּסֵבֶר פָּנִים יָפוֹת:

(טז) רַבָּן גַּמְלִיאֵל הָיָה אוֹמֵר, עֲשֵׂה לְךָ רַב, וְהִסְתַּלֵּק מִן הַסָּפֵק, וְאַל תַּרְבֶּה לְעַשֵּׂר אֹמָדוֹת:

(יז) שִׁמְעוֹן בְּנוֹ אוֹמֵר, כָּל יָמַי גָּדַלְתִּי בֵין הַחֲכָמִים, וְלֹא מָצָאתִי לַגּוּף טוֹב אֶלָּא שְׁתִיקָה. וְלֹא הַמִּדְרָשׁ הוּא הָעִקָּר, אֶלָּא הַמַּעֲשֶׂה. וְכָל הַמַּרְבֶּה דְבָרִים, מֵבִיא חֵטְא:

(יח) רַבָּן שִׁמְעוֹן בֶּן גַּמְלִיאֵל אוֹמֵר, עַל שְׁלשָׁה דְבָרִים הָעוֹלָם עוֹמֵד, עַל הַדִּין וְעַל הָאֱמֶת וְעַל הַשָּׁלוֹם, שֶׁנֶּאֱמַר (זכריה ח) אֱמֶת וּמִשְׁפַּט שָׁלוֹם שִׁפְטוּ בְּשַׁעֲרֵיכֶם:

(14) He [Rabbi Hillel] used to say: If I am not for me, who will be for me? And when I am for myself alone, what am I? And if not now, then when?

(15) Shammai says, "Make your Torah fixed, say little and do much, and receive every person with a pleasant countenance."

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

(17) Shimon, his son, says, "All my days I grew up among the Sages, and I did not find anything good for the body except silence. And the exposition [of Torah] is not what is essential, but the action. And whoever increases words brings sin."

(18) Rabban Shimon ben Gamliel says, "On three things the world stands: on judgment, on truth and on peace, as it is said (Zachariah 8:16), 'Judge truth and the justice of peace in your gates.'"

(ה) הוּא הָיָה אוֹמֵר, אֵין בּוּר יְרֵא חֵטְא, וְלֹא עַם הָאָרֶץ חָסִיד, וְלֹא הַבַּיְשָׁן לָמֵד, וְלֹא הַקַּפְּדָן מְלַמֵּד, וְלֹא כָל הַמַּרְבֶּה בִסְחוֹרָה מַחְכִּים. וּבְמָקוֹם שֶׁאֵין אֲנָשִׁים, הִשְׁתַּדֵּל לִהְיוֹת אִישׁ:

(5) He was accustomed to say: A boor cannot fear sin. An ignorant person cannot be pious. A person prone to being ashamed cannot learn. An impatient person cannot teach. Not all who engage in a lot of business become wise. In a place where there is no man, strive to be a man.