Core Text
Core Textאָמַר רַב: יֵצֶר הָרָע דּוֹמֶה לִזְבוּב וְיוֹשֵׁב בֵּין שְׁנֵי מַפְתְּחֵי הַלֵּב, שֶׁנֶּאֱמַר זְבוּבֵי מָוֶת... וּשְׁמוּאֵל אָמַר: דּוֹמֶה לְחִטָּה, שֶׁנֶּאֱמַר לַפֶּתַח חַטָּאת רֹבֵץ.
English of Core Text: Rav said: The evil inclination is like a fly and sits between the two openings of the heart, as it is said “Dead flies...” And Shmuel said: It is like a wheat [kernel], as it is said “sin crouches at the door (petach).”