English Translation
One may not expound the laws of forbidden relations before three. Nor the account of creation before two. Nor the chariot before one alone, unless he was a sage who understands of his own knowledge. Whoever gazes upon four things, it would have been fitting for him as though he had not come into the world: what is above, what is below, what is before, and what is after. And whoever has no concern for the honor of his Maker, it would have been fitting for him that he had not come into the world.
Original Hebrew or Aramaic
אֵין דּוֹרְשִׁין בַּעֲרָיוֹת בִּשְׁלֹשָׁה. וְלֹא בְמַעֲשֵׂה בְרֵאשִׁית בִּשְׁנַיִם. וְלֹא בַמֶּרְכָּבָה בְּיָחִיד, אֶלָּא אִם כֵּן הָיָה חָכָם וּמֵבִין מִדַּעְתּוֹ. כָּל הַמִּסְתַּכֵּל בְּאַרְבָּעָה דְּבָרִים, רָאוּי לוֹ כְּאִלּוּ לֹא בָּא לָעוֹלָם, מַה לְּמַעְלָה, מַה לְּמַטָּה, מַה לְּפָנִים, וּמַה לְּאָחוֹר. וְכָל שֶׁלֹּא חָס עַל כְּבוֹד קוֹנוֹ, רָאוּי לוֹ שֶׁלֹּא בָּא לָעוֹלָם: