173 Avot 5/20-23

(כ) יְהוּדָה בֶן תֵּימָא אוֹמֵר, הֱוֵי עַז כַּנָּמֵר, וְקַל כַּנֶּשֶׁר, וְרָץ כַּצְּבִי, וְגִבּוֹר כָּאֲרִי, לַעֲשׂוֹת רְצוֹן אָבִיךָ שֶׁבַּשָּׁמָיִם. הוּא הָיָה אוֹמֵר, עַז פָּנִים לְגֵיהִנֹּם, וּבֹשֶׁת פָּנִים לְגַן עֵדֶן. יְהִי רָצוֹן מִלְּפָנֶיךָ יְיָ אֱלֹהֵינוּ שֶׁתִּבְנֶה עִירְךָ בִּמְהֵרָה בְיָמֵינוּ וְתֵן חֶלְקֵנוּ בְתוֹרָתֶךָ:

(כא) הוּא הָיָה אוֹמֵר, בֶּן חָמֵשׁ שָׁנִים לַמִּקְרָא, בֶּן עֶשֶׂר לַמִּשְׁנָה, בֶּן שְׁלשׁ עֶשְׂרֵה לַמִּצְוֹת, בֶּן חֲמֵשׁ עֶשְׂרֵה לַתַּלְמוּד, בֶּן שְׁמֹנֶה עֶשְׂרֵה לַחֻפָּה, בֶּן עֶשְׂרִים לִרְדֹּף, בֶּן שְׁלשִׁים לַכֹּחַ, בֶּן אַרְבָּעִים לַבִּינָה, בֶּן חֲמִשִּׁים לָעֵצָה, בֶּן שִׁשִּׁים לַזִּקְנָה, בֶּן שִׁבְעִים לַשֵּׂיבָה, בֶּן שְׁמֹנִים לַגְּבוּרָה, בֶּן תִּשְׁעִים לָשׁוּחַ, בֶּן מֵאָה כְּאִלּוּ מֵת וְעָבַר וּבָטֵל מִן הָעוֹלָם:

(כב) בֶּן בַּג בַּג אוֹמֵר, הֲפֹךְ בָּהּ וַהֲפֹךְ בָּהּ, דְּכֹלָּא בָהּ. וּבָהּ תֶּחֱזֵי, וְסִיב וּבְלֵה בָהּ, וּמִנַּהּ לֹא תָזוּעַ, שֶׁאֵין לְךָ מִדָּה טוֹבָה הֵימֶנָּה:

(כג) בֶּן הֵא הֵא אוֹמֵר, לְפוּם צַעֲרָא אַגְרָא:

(20) Yehudah ben Teimah says: Be brazen like the leopard, light like the eagle, swift like the deer, and mighty like the lion to do the Will of your Father Who is in Heaven. He used to say: [the] brazen-faced [are bound] for Gehinnom (Purgatory), and [the] shamefaced [are bound] for the Garden of Eden. May it be Your Will, Lord, our God and the God of our forefathers, that Your city be rebuilt, speedily and in our days, and grant us our share in Your Torah.

(21) He [Yehudah ben Teima] used to say: Five years [is the age] for [the study of] Scripture, Ten [is the age] for [the study of] Mishnah, Thirteen [is the age] for [observing] commandments, Fifteen [is the age] for [the study of] Talmud, Eighteen [is the age] for the [wedding] canopy, Twenty [is the age] for pursuit, Thirty [is the age] for [full] strength, Forty [is the age] for understanding, Fifty [is the age] for [giving] counsel, Sixty [is the age] for mature age, Seventy [is the age] for a hoary head, Eighty [is the age] for [superadded] strength, Ninety [is the age] for [a] bending [stature], One hundred, is [the age at which one is] as if dead, passed away, and ceased from the world.

(22) Ben Bag Bag says: Search in it and search in it, since everything is in it. And in it should you look, and grow old and be worn in it; and from it do not move, since there is no characteristic greater than it.

(23) Ben Hey Hey says: According to the pain is the reward.