Man has been likened to an earthen pot.... You have but to tap the pot with your finger. If it rings back full and true, all is well; there is your perfect pot. And if not—man, alas, has been likened to a broken potsherd.
Mesiras Nefesh, c. 1910. Alle Verk, vii. 142. M. Samuel. Prince of the Ghetto. Alfred A. Knopf, 1948, p. 22.