There is in fact a true law namely right reason, which is in accordance with nature, applies to all men and is unchangeable and eternal. ... It will not lay down one rule at Rome and another at Athens, nor will it be one rule today and another tomorrow. But there will be one law eternal and unchangeable binding all times and upon all peoples.
Marcus Tullius CiceroFor nothing is more commendable, nothing more becoming in a preeminently great man than courtesy and forbearance.
Marcus Tullius Cicero