"[Natural law] does not come from outside (and therefore is not heteronomous) but from within (and in this sense is autonomous: it is the law that reason itself gives to man or, better still, it is the law that man himself gives himself through his own reason): it is not the result of arduous and abstruse speculation and its perception is so easy that it appears almost intuitive. :*Quoted in Giuseppe Brienza, “”Who was Battista Mondin, missionary and theologian“”, “'Formiche.net”', 4 February 2015."