Philosophy: the rational investigation of the truths and principles of being, knowledge, or conduct.
Philosophy is not just what experienced theory-developers think of.
Philosophy is ALL the concepts we figure out in our daily life.
All the conscious and subconscious conclusions we come up with in our minds.
From the simplest things like what color this is, to more complex things like emotions or comparative thinking or rationality which leads to a better understanding and definition. (Two levels of thinking: Natural and Rational)
And we all see things and understand things differently, depending on our genetics and mind-capability and experiences. So all of our final conclusions of every little thing are a tad different, and they are all philosophy. None of them is right or wrong, they are all theories of The Roaming.
And they are all rational investigations of the truths and principles of being, knowledge, or conduct.