He who saves one life of Israel is as if he saves a whole world
See: "Whoever lives a single soul in Israel, it is written against him as if the whole world had existed."
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Translation
Expression (Hebrew)
הַמַּצִּיל נֶפֶשׁ אַחַת מִיִּשְׂרָאֵל כְּאִלּוּ מַצִּיל עוֹלָם מָלֵא
Definition (Hebrew)
רְאֵה: "כָּל הַמְקַיֵּם נֶפֶשׁ אַחַת מִיִּשְׂרָאֵל מַעֲלֶה עָלָיו הַכָּתוּב כְּאִלּוּ קִיֵּם עוֹלָם מָלֵא".
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