Ketubot

he shall plug his finger  into his ears. And this is the same that R. Eleazar said: Why do the fingers of man resemble pegs? Why?  Shall I say because they are divided?  [Surely] each one has been made for its own purpose! Our Rabbis taught: A man shall not let his ears hear idle things,  because they are burnt first of [all] the organs. The question was asked: Is it allowed  to perform the first marital act on Sabbath?  Is the blood [in the womb] stored up,21  or is it the result of a wound?22  And if you will say  [that] the blood is stored up [in the womb, then the question arises:] is he concerned about the blood,24  and it is allowed: or is he concerned