… the original name for science was natural philosophy.

A philosopher is a person who is curious about everything. He’s not only curious about theoretical matter,s but he’s also curious about what we should now call practical matters. I regard myself as a philosopher in exactly that sense. Aside from being interested in changed states of consciousness, the problems of death, problems of time and space, and the practice of meditation, I am also interested in what you would call down-to-earth things, such as food, clothing, housing, problems of ecology and population, because all of this is part of natural curiosity or philosophy.