Montesquieu
 

XXVI.11 That one must not regulate human tribunals by the maxims of tribunals that look to the afterlife

The tri­bu­nal of the Inquisition, for­med by Christian monks on the model of the tri­bu­nal of peni­tence, is contrary to all good order. Everywhere it has encoun­te­red a gene­ral revolt, and it would have suc­cum­bed to its contra­dic­tions if those who wan­ted to esta­blish it had not found those very contra­dic­tions advan­ta­geous.

That tri­bu­nal is insup­por­ta­ble under any govern­ment. In a monar­chy it can only form infor­mers and trai­tors ; in repu­blics it can only form disho­nest per­sons ; in the des­po­tic state it is des­truc­tive as is the state.