648. What do you think of the division of natural law into ten parts, namely, the laws of adoration, labour, reproduction, preservation, society, equality, liberty, justice, love, and charity?
"The division of the law of God into ten parts is that of Moses, and may be made to include all the circumstances of life, which is the essential point. You may therefore adopt it, without its being held to have any absolute value, any more than the various other systems of classification which depend on the aspect under which the subject is considered. The last of those parts is the most important; because the law of charity includes all the others, and it is therefore through the observance of this law that mankind advances most rapidly in spiritual life."