How to choose and why to choose a certain end are what praxeology attempts to answer comprehensively.

Praxeology is a science because it concerns itself of the outside world.

It makes suggestions on how and why to choose a certain action based on objective phenomena happening in the world. But it does not compel you (it is amoral; amoralism).

What to choose is something that you determine:

  • By reason and
  • By factors beyond reason

Determining what you want is a task you uniquely are given to answer given the existence of consciousness and free will.