תַּנְיָא, רַבִּי שִׁמְעוֹן בֶּן אֶלְעָזָר אוֹמֵר: עֲשֵׂה עַד שֶׁאַתָּה מוֹצֵא, וּמָצוּי לְךָ, וְעוֹדְךָ בְּיָדֶךָ. וְאַף שְׁלֹמֹה אָמַר בְּחׇכְמָתוֹ: ״וּזְכוֹר אֶת בּוֹרְאֶיךָ בִּימֵי בְּחוּרוֹתֶיךָ עַד [אֲשֶׁר] (שֶׁ)לֹא יָבֹאוּ יְמֵי הָרָעָה״ — אֵלּוּ יְמֵי הַזִּקְנָה, ״וְהִגִּיעוּ שָׁנִים אֲשֶׁר תֹּאמַר אֵין לִי בָהֶם חֵפֶץ״ — אֵלּוּ יְמֵי הַמָּשִׁיחַ, שֶׁאֵין בָּהֶם לֹא זְכוּת וְלֹא חוֹבָה. וּפְלִיגָא דִּשְׁמוּאֵל, דְּאָמַר שְׁמוּאֵל: אֵין בֵּין הָעוֹלָם הַזֶּה לִימוֹת הַמָּשִׁיחַ אֶלָּא שִׁיעְבּוּד מַלְכִיּוֹת בִּלְבַד, שֶׁנֶּאֱמַר: כִּי ״לֹא יֶחְדַּל אֶבְיוֹן מִקֶּרֶב הָאָרֶץ״.
It was also taught in a baraita with regard to the appreciation of life: Rabbi Shimon ben Elazar says: Perform mitzvot while you still find opportunities, and you have the financial means, and you are still under your own control. And King Solomon also said, in his wisdom: “And remember your Creator in the days of your youth, before the evil days come and the years arrive when you will say: I have no desire for them” (Ecclesiastes 12:1). Rabbi Shimon ben Elazar explains: “The evil days”; these are the days of old age. “And the years arrive when you will say: I have no desire for them”; these are the days of Messiah, in which there is neither merit nor liability. The Gemara comments that this explanation disagrees with the view of Shmuel, for Shmuel said: There is no difference between this world and the days of Messiah except for subjugation to foreign kingdoms alone, from which we will be released in the Messianic era, as it is stated: “For the poor will never cease from the land, therefore I command you, saying: You shall surely open your hand to your brother, to your poor and your needy in your land.” (Deuteronomy 15:11). This indicates that the ways of the world, including the existence of wealthy and poor socioeconomic strata, will continue forever.