Now against their tricks I will introduce your own laws as my advocates, as indeed I earnestly try to do throughout this whole prosecution. For if what they say is true, and such a custom has crept into your government that invalid laws stand written among the valid, and that there exist two laws concerning one and the same action, which contradict each other, how could any man longer call this a “government,” if in it the laws command to do and not to do one and the same thing?