Josef Pieper Quote

When the physicist poses the question, "What does it mean to do physics?" or "What is research in physics?" — his question is a preliminary question. Clearly, when you ask a question like that, and try to answer it, you are not "doing physics." Or rather you are no longer doing physics. But when you ask yourself, "What does it mean to do philosophy?" then you actually are "doing philosophy" — this is not at all a "preliminary" question but a truly philosophical one: you are right at the heart of the business.

p. 63 - Leisure, the Basis of Culture (1948) - The Philosophical Act