There is an outlook on the world that I call the Scientific Attitude (SA).  There are times when the “A” is better served by apperception, approach, or attunement, but attitude will do for a start.

The scientific attitude accepts appearances, as appearances, but it does not stop there — it inquires after the possible realities that would both save and solve the appearances.

Reality is what persists and the scientific attitude accepts its limitation to what persists.  Thisness and thatness may come and go, but scientific knowledge rests on results that are reproducible.  It is knowledge of particulars in general terms.