How can you tell if you can lift this place up or if it will drag you down?
Because we have a Torah, and the Torah is our guide. And we have the sages of the Torah, and they can instruct us. If the Torah says you must go, you must go. If the Torah says you cannot go, you cannot go.
No matter how great the opportunity seems, no matter how fantastic the reward seems, you will not be able to redeem the sparks, but only further nourish the darkness that holds them captive.
Second night of Passover 1958 (5718)