Humans are like Variables in mathematics, some Dependent, some Independent. Variables are in relationship but remain Variable. Of course, there are some Constants too both in mathematics and humans. Constants help define precisely the relationship...

There is not so variable a thing in nature as a lady’s head-dress.

The technology is the independent variable, the social system the dependent variable. Social, systems are therefore determined by systems of technology; as the latter change, so do the former.

Destiny is variable, not fixed; it is forever changing depending upon your free will to make choices for what you want your life to be.