process may be left to Ethics to analyse, in chapters and paragraphs entitled “Duties of Virtue,” “Duties of Love,” “Imperfect Duties,” or whatever other name be used.

The root, the basis of all these is the one here indicated; for out of it arises the primary precept: Omnes, quantum potes, juva; from which in turn everything else required can very easily be deduced; just as out of the Neminem laede — the first half of my principle — all duties of justice are derivable. Ethics is in truth the easiest of all sciences. And this is only to be expected, since it is incumbent on each person to construct it for himself, and himself form the rule for every case, as it occurs, out of the fundamental law which lies deep in his heart; for few have leisure and patience enough to learn