There are two types of laws which govern our lives: firstly, the permanent laws which do not change with the change in time, and secondly, the variable laws which undergo a transformation with the change in time. There are uncountable phenomena based on permanent nature which take place daily in our lives. Do we argue about millions of years old laws like 2 + 2 = 4? Or do we challenge the notion that man is by nature a social being? Or do we say that the law of gravity is very old and should now be replaced with something new? We observe that all of these laws are based on the system of creation of the universe, and so these laws are not changeable, because the system of creation or the way nature works remains the same, and change of time does not affect it.
source : http://abna.ir