▁explains ▁that : ▁▁▁▁▁▁ ▁there ▁belongs ▁to ▁the ▁natural ▁law , ▁first , ▁certain ▁most ▁general ▁pre cept s , ▁that ▁are ▁known ▁to ▁all ; ▁▁▁▁▁▁ ▁and ▁second ly , ▁certain ▁secondary ▁and ▁more ▁detailed ▁pre cept s , ▁which ▁are , ▁as ▁it ▁were , ▁▁▁▁▁▁ ▁conclus ions ▁following ▁closely ▁from ▁first ▁principles . ▁As ▁to ▁those ▁general ▁principles , ▁the ▁▁▁▁▁▁ ▁natural ▁law , ▁in ▁the ▁abstract , ▁can ▁now ise ▁be ▁bl otted ▁out ▁from ▁men ' s ▁hearts . ▁But ▁it ▁is ▁bl otted ▁▁▁▁▁▁ ▁out ▁in ▁the ▁case ▁of ▁a ▁particular ▁action , ▁in so far ▁as ▁reason ▁is ▁h inder ed ▁from ▁applying ▁the ▁▁▁▁▁▁ ▁general ▁principle ▁to ▁a ▁particular ▁point ▁of ▁practice , ▁on ▁account ▁of ▁conc up isc ence ▁or ▁some ▁▁▁▁▁▁ ▁other ▁passion , ▁as ▁stated ▁above ▁( 7 7 , ▁ 2 ). ▁But ▁as ▁to ▁the ▁other , ▁i . e ., ▁the ▁secondary ▁pre cept s , ▁the ▁▁▁▁▁▁ ▁natural ▁law ▁can ▁be ▁bl otted ▁out ▁from ▁the ▁human ▁heart , ▁either ▁by ▁evil ▁persu as ions , ▁just ▁as ▁in ▁▁▁▁▁▁ ▁spec ulative ▁matters ▁errors ▁occur ▁in ▁respect ▁of ▁necessary ▁conclus ions ; ▁or ▁by ▁v icious ▁custom s ▁▁▁▁▁▁ ▁and ▁cor rupt ▁hab its , ▁as ▁among ▁some ▁men , ▁the ft , ▁and ▁even ▁un natural ▁v ices , ▁as ▁the ▁Apost le ▁▁▁▁▁▁ ▁states ▁( R m . ▁i ), ▁were ▁not ▁este emed ▁sin ful . ▁ ▁However , ▁while ▁the ▁primary ▁and ▁immediate ▁pre