With regard to philosophical metaphysics, I always see increasing numbers who have attained to the negative goal, but as yet few who climb a few rungs backwards; one ought to look out, perhaps, over the last steps of the ladder, but not try to stand upon them.
For if God is man's chief good, which you cannot deny, it clearly follows, since to seek the chief good is to live well, that to live well is nothing else but to love God with all the heart, with all the soul, with all the mind.
'Thou shalt not kill' does not apply to murder of one's own kind only, but to all living beings and this commandment was inscribed in the human breast long before it was proclaimed from Sinai.