Philosophy is the mother of all science.
The etymologi of philosophy is from the greek "philos" and "shopos".
The terminology is thinking radically, critically, universally, and systematically.
* To think radically is to think deeply.
* Critical is the person who asks the arguments.
* Universal is comprehensive. He meants one who thinks of fission.
* Systematic is orderly or neatly arranged.
The reason for learning his own philosophy is:
Because humans are reasonable animals (can think)
Humans have a curiosity
Because humans have a sense of awe