Rabbi Yehudah tells us that Rav says a man should never absent himself
from the lecture hall, not even for one hour; for the above Mishnah had
been taught at college for many years, but the reason of it had never
been made plain till the hour when Rabbi Chanina ben Akavia came and
explained it.

_Shabbath_, fol. 83, col. 2.

The Mishnah alluded to is short and simple, viz, Where is it
taught that a ship is clean to the touch? From Prov. xxx. 19,
"The way of a ship in the midst of the sea." (i.e., as the sea
is clean to the touch, therefore a ship must also be clean to
the touch).

It is indiscreet for one to sleep in a house as the sole occupant, for
Lilith will seize hold of him.

Ibid., fol. 151, col. 2.

Lilith (the night-visiting one) is the name of a night spectre,
said to have been Adam's first wife, but who, for her refractory
conduct, was transformed into a demon endowed with power to
injure and even destroy infants unprotected by the necessary
amulet or charm.

"Thou hast acknowledged the Lord this day to be thy God; and the Lord
hath acknowledged thee this day to be His peculiar people" (Deut. xxvi.
17, 18). The Holy One--blessed be He!--said unto Israel, "Ye have made
Me a name in the world, as it is written (Deut. vi. 4), 'Hear, O Israel,
the Lord our God is one Lord;' and so I will make you a name in the