When a person is in a state of apprehension and cannot make out the
cause of it (the star that presided at his birth and his genii know all
about it), what should he do? Let him jump from where he is standing
four cubits, or else let him repeat, "Hear, O Israel," etc. (Deut. vi.
4); or if the place be unfit for the repetition of Scripture, let him
mutter to himself, "The goat at the butcher's is fatter than me."
THE TALMUD, _Sanhedrin_, fol. 94, col. 1.