   Thus our Master Mozi’s having Heaven’s intention, to give an analogy, is no different from the wheelwright’s having a compass or the carpenter’s having a set square.... Above, he uses it to measure how the kings, dukes, and great men of the world administer the penal codes and government; below, he uses it to gauge how the myriad people of the world engage in writings and studies and present statements and discussions. Observe their conduct; if it follows Heaven’s intention, call it good intentions and conduct; if it opposes Heaven’s intention, call it bad intentions and conduct.  Observe their statements and discussions; if they follow Heaven’s intention, call them good statements and discussions; if they oppose Heaven’s intention, call them bad statements and discussions. Observe their penal codes and government; if they follow Heaven’s intention, call them good penal codes and government; if they oppose Heaven’s intention, call them bad penal codes and government. So he sets this up as a fa (model), establishes this as a standard, and uses it to measure the benevolence (ren) and unbenevolence of the kings, dukes, great men, secretaries, and ministers in the world, and, to give an analogy, it is like dividing black from white.