רַבִּי נַחְמָן בַּר שְׁמוּאֵל בַּר נַחְמָן בְּשֵׁם רַב שְׁמוּאֵל בַּר נַחְמָן אָמַר, הִנֵּה טוֹב מְאֹד, זֶה יֵצֶר טוֹב. וְהִנֵּה טוֹב מְאֹד, זֶה יֵצֶר רָע. וְכִי יֵצֶר הָרָע טוֹב מְאֹד, אֶתְמְהָא. אֶלָּא שֶׁאִלּוּלֵי יֵצֶר הָרָע לֹא בָּנָה אָדָם בַּיִת, וְלֹא נָשָׂא אִשָּׁה, וְלֹא הוֹלִיד, וְלֹא נָשָׂא וְנָתַן. וְכֵן שְׁלֹמֹה אוֹמֵר (קהלת ד, ד): כִּי הִיא קִנְאַת אִישׁ מֵרֵעֵהוּ.
Rabbi Nahman said in Rabbi Samuel's name: 'Behold, it was good' refers to the Good Desire; 'And behold, it was very good' refers to the Evil Desire. (It only says 'very good' after man was created with both the good and bad inclinations, in all other cases it only says 'and God saw that it was good') Can then the Evil Desire be very good? That would be extraordinary! But without the Evil Desire, however, no man would build a house, take a wife and beget children; and thus said Solomon: 'Again, I considered all labour and all excelling in work, that it is a man's rivalry with his neighbor.' (Ecclesiastes 4:4).
כָּךְ הַקָּדוֹשׁ בָּרוּךְ הוּא אָמַר לָהֶם לְיִשְׂרָאֵל בָּנַי בָּרָאתִי יֵצֶר הָרָע וּבָרָאתִי לוֹ תּוֹרָה תַּבְלִין וְאִם אַתֶּם עוֹסְקִים בַּתּוֹרָה אֵין אַתֶּם נִמְסָרִים בְּיָדוֹ שֶׁנֶּאֱמַר הֲלוֹא אִם תֵּיטִיב שְׂאֵת
So too the Holy One, Blessed be He, said to Israel: My children, I created an evil inclination, which is the wound, and I created Torah as its antidote. If you are engaged in Torah study you will not be given over into the hand of the evil inclination, as it is stated: “If you do well, shall it not be lifted up?” (Genesis 4:7). One who engages in Torah study lifts himself above the evil inclination.
לֹא־תֵלֵ֤ךְ רָכִיל֙ בְּעַמֶּ֔יךָ לֹ֥א תַעֲמֹ֖ד עַל־דַּ֣ם רֵעֶ֑ךָ אֲנִ֖י יְהוָֽה׃
Do not deal basely with members of your people. Do not profit by the blood of your fellow [Israelite]: I am יהוה.
א"ר יוחנן משום ר"ש בן יוחאי גדול אונאת דברים מאונאת ממון שזה נאמר בו (ויקרא כה, יז) ויראת מאלהיך וזה לא נאמר בו ויראת מאלהיך ור' אלעזר אומר זה בגופו וזה בממונו רבי שמואל בר נחמני אמר זה ניתן להישבון וזה לא ניתן להישבון
Rabbi Yoḥanan says in the name of Rabbi Shimon ben Yoḥai: Greater is the transgression of verbal mistreatment than the transgression of monetary exploitation, as with regard to this, verbal mistreatment, it is stated: “And you shall fear your God.” But with regard to that, monetary exploitation, it is not stated: “And you shall fear your God.” And Rabbi Elazar said this explanation: This, verbal mistreatment, affects one’s body; but that, monetary exploitation, affects one’s money. Rabbi Shmuel bar Naḥmani says: This, monetary exploitation, is given to restitution; but that, verbal mistreatment, is not given to restitution.
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.
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:
He used to say: A brute is not sin-fearing, nor is an ignorant person pious; nor can a timid person learn, nor can an impatient person teach; nor will someone who engages too much in business become wise. In a place where there are no men, strive to be a man.