The laws of nature can be proven, and backed up with scientific fact. The law of gravity would be considered a law of nature. Thousands of experiments have been done, and not once has gravity been disproved. The laws of nature are universal, meaning that regardless of what a person believes, that law of nature will not change. An acorn will become an oak tree, even if someone in Africa believes an acorn will become a maple.
The laws of right are slightly more subjective. These deal with morals, which can differ between indviduals of different cultures and backgrounds. The laws of right are considered to be subjective, and depend upon the individual. We often look to religious leaders to provide advice upon the morals we should espouse and follow.