כְּשֵׁם שֶׁהֶחָכָם נִכָּר בְּחָכְמָתוֹ וּבְדֵעוֹתָיו וְהוּא מֻבְדָּל בָּהֶם מִשְּׁאָר הָעָם. כָּךְ צָרִיךְ שֶׁיִּהְיֶה נִכָּר בְּמַעֲשָׂיו בְּמַאֲכָלוֹ וּבְמַשְׁקֵהוּ וּבִבְעִילָתוֹ וּבַעֲשִׂיַּת צְרָכָיו וּבְדִבּוּרוֹ וּבְהִלּוּכוֹ וּבְמַלְבּוּשׁוֹ וּבְכִלְכּוּל דְּבָרָיו וּבְמַשָּׂאוֹ וּבְמַתָּנוֹ. וְיִהְיוּ כָּל הַמַּעֲשִׂים הָאֵלּוּ נָאִים וּמְתֻקָּנִים בְּיוֹתֵר. כֵּיצַד. תַּלְמִיד חָכָם לֹא יִהְיֶה גַּרְגְּרָן אֶלָּא אוֹכֵל מַאֲכָל הָרָאוּי לְהַבְרוֹת גּוּפוֹ. וְלֹא יֹאכַל מִמֶּנּוּ אֲכִילָה גַּסָּה. וְלֹא יְהֵא רוֹדֵף לְמַלְּאֹת בִּטְנוֹ כְּאֵלּוּ שֶׁמִּתְמַלְּאִין מִמַּאֲכָל וּמִשְׁתֶּה עַד שֶׁתִּפַּח כְּרֵסָם. וַעֲלֵיהֶם מְפֹרָשׁ בַּקַּבָּלָה (מלאכי ב ג) "וְזֵרִיתִי פֶרֶשׁ עַל פְּנֵיכֶם". אָמְרוּ חֲכָמִים אֵלּוּ בְּנֵי אָדָם שֶׁאוֹכְלִין וְשׁוֹתִין וְעוֹשִׂין כָּל יְמֵיהֶם כְּחַגִּים. וְהֵם הָאוֹמְרִים (ישעיה כב יג) "אָכוֹל וְשָׁתֹה כִּי מָחָר נָמוּת". וְזֶהוּ מַאֲכַל הָרְשָׁעִים. וְשֻׁלְחָנוֹת אֵלּוּ הֵם שֶׁגִּנָּה הַכָּתוּב וְאָמַר (ישעיה כח ח) "כִּי כָּל שֻׁלְחָנוֹת מָלְאוּ קִיא צֹאָה בְּלִי מָקוֹם". אֲבָל הֶחָכָם אֵינוֹ אוֹכֵל אֶלָּא תַּבְשִׁיל אֶחָד אוֹ שְׁנַיִם וְאוֹכֵל מִמֶּנּוּ כְּדֵי חַיָּיו וְדַּיּוֹ. הוּא שֶׁאָמַר שְׁלֹמֹה (משלי יג כה) "צַדִּיק אֹכֵל לְשֹׂבַע נַפְשׁוֹ":
Just as a wise man is recognizable by his wisdom and dispositions, and distinguished by them from the rest of the people, so [too] does he need to be recognizable in his eating, in his drinking, in his sexual relations, in his taking care of his needs, in his speech, in his walking, in his clothing, in the maintenance of his things, and in his business dealings. And all of these activities should be especially nice and proper. How is this? A Torah scholar should not be a glutton, but should eat food that is fitting for his body's health. And he should not overeat of it. And he should not run after stuffing his belly like those who stuff themselves with food and drink until their stomachs burst. And about them it is explicit in the tradition, "and I will spread dung upon your faces" (Malachi 2:3). The sages said (Shabbat 151a) that these are people who eat and drink and make all of their days like holidays. And they are the ones that say, "Eat and drink, for tomorrow we die." And this is the eating of the wicked. And these tables are the ones that Scripture condemned and said, "As all tables are filled with vomit and filth, with no space" (Isaiah 28:8). But the wise man only eats one or two dishes and eats of it enough for his living and that is enough for him. This is what Solomon meant by "A righteous one eats to satisfy his soul" (Proverbs 13:25).
