The Jewish Obligation to Engage in Social Activism A Family-Friendly Source Sheet

(יד) הוּא הָיָה אוֹמֵר, אִם אֵין אֲנִי לִי, מִי לִי. וּכְשֶׁאֲנִי לְעַצְמִי, מָה אֲנִי.

וְאִם לֹא עַכְשָׁיו, אֵימָתַי:

[Rabbi Hillel] would say: "If I am not concerned about myself, who will be concerned for me? But if I am only concerned about myself, what am I?

And if not now, then when?

(טז) הוּא הָיָה אוֹמֵר, לֹא עָלֶיךָ הַמְּלָאכָה לִגְמֹר, וְלֹא אַתָּה בֶן חוֹרִין לִבָּטֵל מִמֶּנָּה...

[Rabbi Tarfon] Would say: It is not your responsibility to finish the work, but neither are you free to give up on it...

וַאֲהַבְתֶּ֖ם אֶת־הַגֵּ֑ר כִּֽי־גֵרִ֥ים הֱיִיתֶ֖ם בְּאֶ֥רֶץ מִצְרָֽיִם׃
You too must befriend the stranger, for you were strangers in the land of Egypt.