To do philosophy is
{ 1 } - to reason about the ultimate questions of life.
{ 2 } - to reason about the ultimate questions of morality.
When we do philosophy, we reason and debate about questions like these:
* Is there a God?
* Are our actions free or determined?
* Are humans completely explainable in material terms?
* How and what can we know?
* What is the nature and methodology of moral judgments?
* What principles ought we to live by?